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12. Past Simple vs Present Perfect

Present Perfect

Affirmative

Long Form

Short Form

I/You

have

’ve

lived/

He/She/It

has

’s

come.

We/They

have

’ve

Negative

Long Form

Short Form

I/You

have not

haven't

lived/

He/She/It

has not

hasn't

come.

We/They

have not

haven't

Interrogative

Short Answers

Have

Has

Have

I/you

he/she/it

we/they

lived?/ come?

Yes, I/we have. No, I/we haven’t. Yes, he/she/it has.

No, he/she/it hasn’t.

Yes, you/they have.

No, you/they haven’t.

  • We form the present perfect with the auxiliary verb have/has and the past participle.

  • We form the past participle of regular verbs by adding -ed to the verb, stay - stayed

  • We form the past participle of irregular verbs differently.

give - given (See the list of irregular verbs at the back of the book.)

  • We form questions by putting have/has before the subject. Have you seen the film?

  • We form negations by putting not between have/has and the past participle.

She has not/hasnt done her homework yet.

Use

We use the present perfect:

  • for actions which happened at an unspecified time in the past. The exact time is not mentioned because it is not important We put more emphasis on the action.

She has found a new job. (When did she find it? We don’t mention the exact time because it is not important. What is important is the fact that she has a new job.)

  • for actions which started in the past and still continue in the present.

She has lived there since 1999. (She started living there in 1999, and she is still living there.)

  • for actions which have recently finished and their results are visible in the present.

She has put on weight. (We can see that she has put on weight. She used to be thinner.)

  • with today, this morning/afternoon, etc when these periods of time are not finished at the time of speaking. They have packed three boxes this morning. (It is still morning, so this period of time is not finished.)

BUT: They packed their suitcases this morning. (Now it is evening.)

Time expressions used with the present perfect simple: for, since, already, just, always, ever, how long, yet, lately, never, so far, today, this morning/ afternoon/week/month/year, etc.

Affirmative

For

He has lived here for ten years.

Since

They have been on holidays since Monday.

Already

She has already finished her homework.

Just

He has just won the competition.

Always

Bob has always loved spinach pie.

Recently

They have recently bought a new house.

Negative

for/in

I haven’t talked to them for/in months, (duration)

Since

I haven’t seen Tony since last week, (starting point)

Yet

She hasn’t replied to my letter yet.

Lately

I haven’t seen Tim lately.

Never

They have never travelled by plane.