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So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

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Page 1: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS
Page 2: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…

OK?The Present Perfect Tense is formed by 2 things:

• the auxiliary verb HAVE and HAS

(in all form: Affirmative, Negative and Interrogative)

• the PAST PARTICIPLE

For Example…She has worked in that office for six years.

auxiliarypast participle

Page 3: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Here are some more examples!

I have already eaten breakfast.

She has seen that movie before.

We have dealt with customers for many years.

In these examples the past participle

has an irregular form. Just like the lists you’ve been

studying

She has used a cash register before.

He has worked for that company since May.

We have already served their food.

In these examples the past participle has a regular

form and looks just the the simple past

tense, but it’s not.

Page 4: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

We often use CONTRACTIONS with this tense.

I have I’ve I haven´t

You have You’ve you haven´t

We have We’ve We haven´t

They have They’ve They haven´t

He has He’s He hasn´t

She has She’s She hasn´t

It has It’s It hasn´t

I have lived in Florida for two years.

I’ve lived in Florida for two years

Page 5: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

So now that we’ve talked about the form (words) of the PRESENT PERFECT, we can now look at the reasons (function) we use it and see in what situations we need it.

There are 2 main reasons we use the PRESENT PERFECT TENSE. They are completely different and have no connection to one another.

Do you want to guess?

Page 6: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Are you Ready?Reason #1

We use the PRESENT PERFECT TENSE to talk about a completed past action at an unspecified

time in the past. Perhaps we don’t remember when the action happened.Maybe we don’t know when the action happened.Or we just don’t care when the action happened.The only thing that is important is

that it happened sometime before now. But not any specific

time.I’ve already eaten breakfast.

She’s seen that movie before.

When did it happen?

Page 7: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

When we want to ask a question about something that happened at any time before now, we say:

Have you ever….?Have you ever worked at a job you really loved?

Has she ever worked at a job she really hated?

Have they ever used a cash register?

Have you ever supervised other employees?

The short answer is…Yes, I have.

No, I haven’t

Yes, she has.

No, she hasn’t.

Page 8: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

EVER (alguna vez) NEVER (nunca)USED WITH THE PRESENT PERFECT

Ever means 'at any time', the specific time is unknown or unnecessary, and is used in questions.Example –

Have you ever met a famous person ?(Did you meet a famous person at any time in the past.)

Never is originally a contraction of 'not ever'.

Never means the subject hasn't had a certain experience before.Ex ample Have you ever been abroad? No, I've never been abroad.(I've never had that experience before.)

Ever or never?

Page 9: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

ALREADY (ya) JUST(acabo de ...)USED WITH THE PRESENT PERFECT

Already means that something happened earlier than we expected.

Already usually goes after have or has and before the main verb. subject+have/has+already+past part.

Examples

- We've already had our breakfast.

- When are you going to do your homework?- But I've already done it!

- Do you want a cup of coffee?- No, thanks. I've already had one.“

Just means that something has happened in a very close time, right now or minutes ago, or maybe that day .Just usually goes after have or has and before the main verb. subject+have/has+just+past part.

Examples

- We have just finished our breakfast, so we aren’t hungry (We have finished right know)

- Have you done your homework?- Yes, I have just finished them I’m picking up the books.

Just or Already ?

Page 10: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

YET (aún, todavía no)USED WITH THE PRESENT PERFECT

Yet means that something that we expected has happened or hasn't happened. We usually put it at the end of a sentence.

Examples

- Has the post arrived yet? (¿Aun no ha llegado el paquete?)

- Have you done your homework? (¿Aun no has hecho tus deberes? no, - Not yet. aun no)

- Haven't you got ready yet? Look at the time! (¿Aun no estas lista?)

yet?

Page 11: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

STILL(aún, todavía no)

USED WITH THE PRESENT PERFECT

Still means that something that we expected has happened or hasn't happened. We usually put it at the between the subject and have .It •Examples

•She hasn’t phoned Peter YET •She STILL hasn’t phoned Peter

•I haven’t finished the book YET•I STILL haven’t finished the book

• Peter hasn’t introduced me that handsome boy YET•Peter STILL hasn’t introduced me that handsome boy

still

Page 12: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

We often use the Present Perfect with already to talk about things that have happened before

now. I’ve already eaten breakfast. She’s already read that book.

You’re too late. He’s already left for school.

We usually use yet in questions to find out if something has happened before now.

Have you bought your mother a present yet?

Has she seen that movie yet?

Have they left for school yet?

Page 13: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

With the words “forfor” and “sincesince” to talk about something that began in the past and continues to now.

For example: I’ve studied at this school since last June.

She’s lived in West Palm Beach for 2 months.

1. SINCE + POINT IN TIMEUse the present perfect with “since” + point in time (since 5:00,

since Monday, since 1994) to show when something started.

2. SINCE can also introduce a time clause.

I’ve worked at this job since last year.

He’s lived in Florida since March.

They’ve been married since 1985.

I’ve lived in Lake Worth since I moved to Florida.

Reason #2

Page 14: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

FOR + LENGTH OF TIME

Use the Present perfect with “for” + length of time (for ten minutes, for two weeks, for years, for a long time) to show

how long a present condition has lasted.

I’ve worked at this job for one year.

He’s lived in Florida for 9 months.

They’ve been married for a long time.

So……

How do we ask questions using this tense?When we want to know the length of

time something has taken place we use the question words “HOW

LONG?”How long has she studied English at the school?

Page 15: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

If we want to ask a question about something that happened at a specific time specific time in the past,

we wouldn’t use the present perfect tense. We need to use a different tense. Can you guess

which one?You’re right! The simple past tense.When did they use a cash register?

They used a cash register last year.

When did you supervise other people?

I supervised other people two years ago.

Last year, yesterday, two years ago, last week are all words we use with the simple

past tense

Page 16: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Often when we’re speaking, we go back and forth between these two tenses—the present

perfect and the simple past tense.

Take a look at this example.Miko: Have you ever supervised other

people?Tanaya: Yes, I have.

Miko: When did you do that?

Tanaya: I supervised others last year in my previous job.

TanayaMiko

Page 17: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS
Page 18: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a.a. He / lose / his passport. He’s lost his passport. b.b. We / not / finish / our work. c.c. They / buy / a new house. d.d. I / visit / New York / five times. e.e. They / go / to the cinema. f.f. You / eat / four bananas! g.g. She / not / travel / far. h. h. I / not / do / any homework / this week. i.i. We / not / study / French.

Write affirmative and negative sentences Write affirmative and negative sentences using the Present Perfect tense using the using the Present Perfect tense using the

words given. words given.

Page 19: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. a. She / see / her sister? Has she seen her sister? b. b. They / phone / the doctor? c. c. You / take / any photographs? dd. He / make / any mistakes? e. e. We / watch / any television today? 3. 3. Complete the following sentences with since

Write questions and answer them. Make Write questions and answer them. Make the answers true for YOU the answers true for YOU

Page 20: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. She has worked as a secretary since 1991. b. They have been married ________ a few years. c. They have lived in Manchester ________ a long time. d. He’s written 5 books ________ I met him. e. We haven’t seen them ________ several weeks. f. I haven’t been to the beach ________ last summer. g. Have you used the phone ________ you arrived? h. We haven’t heard any noise ________ many hours. i. Has she studied hard ________ yesterday?

Complete the following sentences with Complete the following sentences with since or forsince or for.

Page 21: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a.a. I / not / play / tennis / last summer. I haven’t played tennis since last summer. b.b. I / know / her / more than ten years. c.c. I / not / eat / anything / lunchtime. d.d. You / live / in this town / a long time? e. e. Jill / be / a good friend / we were at school together. f.f. You / see / Jack / the party last week?

Write sentences using the Present Perfect Write sentences using the Present Perfect form and since or for. form and since or for.

Page 22: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

London has had (have) an underground train system since the 19th century. The London Underground ________ (start) in 1863, when engineers and workers ________ (build) the Metropolitan railway. This railway line ________ (go) from Paddington Station to Farringdon Street Station. It ________ (be) a very short line. Eight more lines ________ (open) since then. The world’s first electric railway ________ (open) in 1890. This line ________ (go) from the city centre to South London. The most modern line is the Jubilee line. It ________ (open) in 1977. Since the London Underground ________ (begin), many other cities, like New York and Moscow, ________ (build) their own systems.

Complete the text using the Past Simple Complete the text using the Past Simple or the Present Perfect tense or the Present Perfect tense

Page 23: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. a. I have played tennis last week. I played tennis last week. b. b. They have finished work yet. c. c. When you bought that umbrella? d. d. Look! I have buy a new umbrella. e.e. I have bought three CDs last week. f. f. She didn’t saw that film. g. g. She hasn’t never seen that film.

Correct the following sentencesCorrect the following sentences:

Page 24: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

NOW CORRECT THEM NOW CORRECT THEM

Page 25: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a.a. He / lose / his passport. He’s lost his passport. b.b. We / not / finish / our work. c.c. They / buy / a new house. d.d. I / visit / New York / five times. e.e. They / go / to the cinema. f.f. You / eat / four bananas! g.g. She / not / travel / far. h. h. I / not / do / any homework / this week. i.i. We / not / study / French.

Write affirmative and negative sentences Write affirmative and negative sentences using the Present Perfect tense using the using the Present Perfect tense using the

words given. words given.

Page 26: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. He / lose / his passport. He’s lost his passport. b.b. We / not / finish / our work.

We haven’t finished our work. c.c. They / buy / a new house.

They have bought a new house. d.d. I / visit / New York / five times.

I have visited New York five timese.e. They / go / to the cinema.

They have gone to the cinemaf.f. You / eat / four bananas!

You have eaten four bananas! g.g. She / not / travel / far.

She hasn’t travelled far. h. h. I / not / do / any homework / this week. .

I haven’t done any homework this weeki.We / not / study / French.

We haven’t studied French

Write affirmative and negative sentences Write affirmative and negative sentences using the Present Perfect tense using the using the Present Perfect tense using the

words given. words given.

Page 27: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. a. She / see / her sister? Has she seen her sister? b. b. They / phone / the doctor? c. c. You / take / any photographs? dd. He / make / any mistakes? e. e. We / watch / any television today? 3. 3. Complete the following sentences with since

Write questions and answer them. Make Write questions and answer them. Make the answers true for YOU the answers true for YOU

Page 28: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. She / see / her sister? Has she seen her sister?

b. b. They / phone / the doctor? Have they phoned the doctor?

c. c. You / take / any photographs? Have you taken any photographs?

dd. He / make / any mistakes? Has he made any mistakes?

e. e. We / watch / any television today? Have we watched any television today?

Write questions and answer them. Make Write questions and answer them. Make the answers true for YOU the answers true for YOU

Page 29: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. She has worked as a secretary since 1991. b. They have been married ________ a few years. c. They have lived in Manchester ________ a long time. d. He’s written 5 books ________ I met him. e. We haven’t seen them ________ several weeks. f. I haven’t been to the beach ________ last summer. g. Have you used the phone ________ you arrived? h. We haven’t heard any noise ________ many hours. i. Has she studied hard ________ yesterday?

Complete the following sentences with Complete the following sentences with since or forsince or for.

Page 30: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. She has worked as a secretary SINCE 1991. b. They have been married ___FOR _____ a few years. c. They have lived in Manchester ____FOR ____ a long time. d. He’s written 5 books ____SINCE ____ I met him. e. We haven’t seen them ___FOR _____ several weeks. f. I haven’t been to the beach ____SINCE ____ last summer. g. Have you used the phone ____SINCE ____ you arrived? h. We haven’t heard any noise ____FOR ____ many hours. i. Has she studied hard ____SINCE ____ yesterday?

Complete the following sentences with Complete the following sentences with since or forsince or for.

Page 31: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a.a. I / not / play / tennis / last summer. I haven’t played tennis since last summer. b.b. I / know / her / more than ten years. c.c. I / not / eat / anything / lunchtime. d.d. You / live / in this town / a long time? e. e. Jill / be / a good friend / we were at school together. f.f. You / see / Jack / the party last week?

Write sentences using the Present Perfect Write sentences using the Present Perfect form and since or for. form and since or for.

Page 32: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. I / not / play / tennis / last summer. I haven’t played tennis since last summer.

b.b. I / know / her / more than ten years. I have known FOR more than ten years.

c.c. I / not / eat / anything / lunchtime. I haven’t eaten anything SINCE lunchtime.

d.d. You / live / in this town / a long time? You have lived in this town FOR a long time?

e. e. Jill / be / a good friend / we were at school together. Jill has been a good friend SINCE we were at school together.

f.f. You / see / Jack / the party last week? Have you seen Jack SINCE the party last week?

Write sentences using the Present Perfect Write sentences using the Present Perfect form and since or forform and since or for. .

Page 33: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

London has had (have) an underground train system since the 19th century. The London Underground ________ (start) in 1863, when engineers and workers ________ (build) the Metropolitan railway. This railway line ________ (go) from Paddington Station to Farringdon Street Station. It ________ (be) a very short line. Eight more lines ________ (open) since then. The world’s first electric railway ________ (open) in 1890. This line ________ (go) from the city centre to South London. The most modern line is the Jubilee line. It ________ (open) in 1977. Since the London Underground ________ (begin), many other cities, like New York and Moscow, ________ (build) their own systems.

Complete the text using the Past Simple Complete the text using the Past Simple or the Present Perfect tense or the Present Perfect tense

Page 34: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

London has had (have) an underground train system since the 19th century. The London Underground STARTED (start) in 1863, when engineers and workers BUILT (build) the Metropolitan railway. This railway line WENT (go) from Paddington Station to Farringdon Street Station. It WAS (be) a very short line. Eight more lines HAVE OPENED (open) since then. The world’s first electric railway OPENED (open) in 1890. This line WENT (go) from the city centre to South London. The most modern line is the Jubilee line. It OPENED (open) in 1977. Since the London Underground BEGAN (begin), many other cities, like New York and Moscow, HAVE BUILT (build) their own systems.

Complete the text using the Past Simple Complete the text using the Past Simple or the Present Perfect tense or the Present Perfect tense

Page 35: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. a. I have played tennis last week. I played tennis last week. b. b. They have finished work yet. c. c. When you bought that umbrella? d. d. Look! I have buy a new umbrella. e.e. I have bought three CDs last week. f. f. She didn’t saw that film. g. g. She hasn’t never seen that film.

Correct the following sentencesCorrect the following sentences:

Page 36: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

a. a. I have played tennis last week. I played tennis last week. b. b. They have finished work yet.

HAVE They finished work yet?. they HAVEN’T finished yet

c. c. When you bought that umbrella? When DID you BUY that umbrella?

d. d. Look! I have buy a new umbrella. Look! I have BOUGHT a new umbrella.

e.e. I have bought three CDs last week. . I BOUGHT three CDs last week.

f. f. She didn’t saw that film. She HASN’T SEEN that film. she DIDN’T SEE that film

g. g. She hasn’t never seen that film. She HAS never seen that film.

Correct the following sentencesCorrect the following sentences:

Page 37: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

PRESENT PERFECT SIMPLE and CONTINUOS

The Present Perfect Tense is used to connect the past and the present, sometimes it is an action that started in the past,

but is still happening today

For Example…She has lived in Santander for ten years.

Meaning: She moved to Santander 10 years ago and she still lives here today

Present perfect: connects the past and the present

Page 38: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Another use is for recently finished actions ( often with JUST) (or YET for negative forms)

For Example…Susan has just mopped the floor, so don’t walk on it!

Or: she hasn’t mopped the floor yet

SO PRESENT PERFECT TENSE FORM IS…has or have

Past participle

+

Page 39: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

PRESENT PERFECT CONTINUOS

The present perfect continuous is often very similar in meaning to the present perfect tense

Just like the Present Perfect, we can use it to talk about something that started in the past, but is still happening

But the present perfect continuous focuses more

on the continuous action. The emphasis in on the duration of the action

Page 40: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

It began raining two hours ago

It is STILL raining now

It has been raining for two hours

has or have

+ Verb – ing

SO PRESENT PERFECT CONTINUOUS TENSE FORM IS…

BEEN+

Page 41: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Jane started to work in her garden at 8:00 this morning. Now it is 12:00

She has been working in her garden for four hours!

Where is Kelly?

She is sleeping.

She has been sleeping for a long time

More examples…

Page 42: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Sam and Paul are talking in the hallway.

They have been talking since the class endedTom and Lucy have not been walking, they have been painting all the morning!!Anna has been studying for three hours! She should take a break!

Page 43: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Difference in meaning:

Present perfect continuous is NEVER used to talk about recently finished actions

1. Susan has moped the floor (present perfect – Recently finished)

2. Susan has been mopping the floor for 15 minutes

(present perfect continuous; not finished yet)

Page 44: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Present perfect focuses more on the result of the action, while the present perfect continuous focuses more on the action itself

1. Tom and Lucy have been painting all morning! (focus on the activity)

2. They have just painted the living room. Doesn’t it look great? (focus on the result)

Page 45: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

Review:

Both tenses can be often used in the same circumstance ( specially with live, work, and study + since and for)

I have worked at the school for many years

I have been working at the school for many years

Both tenses started in the past and they continue up to the present time

Page 46: So…let’s talk about the FORM of the PRESENT PERFECT TENSE first…OK? The Present Perfect Tense is formed by 2 things: the auxiliary verb HAVE and HAS

ACTIVITIES http://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/tests?test1

http://www.eslgamesworld.com/members/games/grammar/perfectpast/New/present%20perfect%20continuous.html

http://www.learn4good.com/languages/evrd_grammar/presentpcont_exc.htm

http://www.adelescorner.org/grammar/pres_per_cont/pres_perfect_cont.html