S + have/has + V (past participle) is the present perfect (have + past participle).

The past participle for regular verbs is –ed, the same as the simple past. For irregular verbs, the past participle is sometimes the same as the simple past. Sometimes, it is different – check out the section on Irregular Verbs for a list of common irregular verbs.

We have the following table of have + past participle, along with the contracted forms:

Positive:

I have jumped (I’ve jumped)
you have jumped (you’ve jumped)
he / she / it has jumped (he’s / she’s / it’s jumped)
we have jumped (we’ve jumped)
they have jumped (they’ve jumped)

Negative:

I have not jumped (I’ve not jumped // I haven’t jumped)
you have not jumped (you’ve not jumped // you haven’t jumped)
he / she / it has not jumped (he’s / she’s / it’s not jumped // he / she / it hasn’t jumped)
we have not jumped (we’ve not jumped // we haven’t jumped)
they have not jumped (they’ve not jumped // they haven’t jumped)

For questions, switch the subject and “have”: Have / Has S ~ ?

I have jumped ==> Have I jumped?
you have jumped ==> Have you jumped?
he / she / it has jumped ==> Has he / she / it jumped?
we have jumped ==> Have we jumped?
they have jumped ==> Have they jumped?

For negative questions, use the contracted form: Haven’t / Hasn’t S ~?

I have not jumped ==> Haven’t I jumped?
you have not jumped ==> Haven’t you jumped?
he / she / it has not jumped ==> Hasn’t he / she / it jumped?
we have not jumped ==> Haven’t we jumped?
they have not jumped ==> Haven’t they jumped?

When do we use Present Perfect?

The present perfect is used to talk about a time from the past until now:

Examples:

Have you seen the new movie?
—No, I haven’t.

Have you gone to college?
—Yes, I went to college when I was 23.

How often has Mary been to Europe?
—She has traveled to Europe a number of times.

Pussy Cat, Pussy Cat, where have you been?
—I’ve been to London to visit the Queen.

I have had several jobs since I graduated from school.
Tom has had bad luck ever since he bought that new car.

We can also use “ever” in questions to ask if something has happened at any time in a person’s life. We can answer with “never” if it has not happened at all:

Have you ever been to Korea?
—Yes, I’ve been there once.
—No, I’ve never been there. I hope to go someday.

Have you ever eaten squid?
—Yes, I’ve eaten it at a seafood restaurant.
—No, I’ve never tried it.

Exercises: Put the verbs in the present perfect.

Examples:

• (I / finish) my homework, so I can relax now. ==> I’ve finished my homework, so I can relax now.
• (She / never / take) piano lessons. ==> She’s never taken piano lessons.
• (you / ever / go) skiing? ==> Have you ever gone skiing?

1. (John / write) a letter to the newspaper.
2. (Mother / tell) Tom five times to pick up his clothes.
3. (Sue / never / come) home this late before.
4. (We / go) to Michigan for vacation every year since I was a child.
5. (you / ever / get) dressed up for a fancy party?
6. (I / never / cook) a turkey for Thanksgiving.
7. (Mary / not / drive) a car before?
8. (Mr. Smith / never / wash) his car.
9. (I / never / be) to the library.
10. (She / never / ride) on an airplane before.
11. (you / not / ever / see) an elephant before?
12. (Rob / never / see) her wear glasses.
13. (Dad / come) home yet?
14. That’s the first time (I / ever / be) late for school.
15. (The baby / never / stay) up this late.
16. (you / ever / make) a pie?
17. (Kathy / never / take) a typing class before.
18. (you / ever / see) such a sight?
19. (James / never / skip) school in his life.
20. (you / ever / play) baseball?

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