He/she/it - has
I/we/you/they - have ---- (HAVE , HAS >>>> AUXILIARIES)
I have been to many countries.
Carla has worked for five different companies.
They have studied English and French
Some past participle forms (irregular verbs)
be-- --was/were---- been
see ----- saw ------ seen
The past participle form of the regular verbs is the same that in the past
Walk - walked - walked
talk- talked- talked
study - studied - studied
REVIEW: If you do not know what are regular and irregular verbs then click here to review the past simple tense (regular ans irregular verbs)
I haven't been to Mexico
Jorge hasn't eaten Peruvian ceviche.
They haven't traveled by plane.
Have you ever been to Cusco?
Where have they studied English?
Has Anna ever danced regeaton?
We use present perfect to express and talk about experiences. By this we mean that we do care or want to say when something happened.
I have studied English >>> We do not say when, we just want to express that we have studied English some time in our life.
Ever: We use ever in questions to emphasis on experiences.
Have you ever been to Brazil? = Have you been to Brazil? (We put ever just to emphasis. It is not necessary but very common).
We use PAST SIMPLE if we say when we did something.
I went to Brazil in 1989.
ERROR : I have been to Brazil in 1989 >>> We CANNOT use Present Perfect when we focus on a definite point in the past.
Remember: If we focus on a definite point in the past we USE PAST SIMPLE. If we want to express experience we use PRESENT PERFECT.