Positive and negative
|have||(not) been||to the United States.|
I've been= I have been
You've/ we've/ they've been= you have/ we have/ they have been
he's/ she's/ it's been= he has/ she has/ it has been
1) The Present Perfect refers to an action that happened some time before now.
- She has travelled to most parts of the world.
- Have they ever been to to any of the European countries?
2) If we need to specify when these actions happened, we must use the Past Simple.
- She travelled to most parts of the world when she was ten.
- They went to Germany and France two years ago.
Ever and Never
We use 'ever' for questions and 'never' for negatives.
- Have you ever seen an horror film?
- We've never won a competition.
Yet and Just
We use 'just' in positive sentences and 'yet' in negative sentences and questions.
- Have you done your homework yet?
- I haven't done my English lesson yet (but I'm going to).
- I've just done my English lesson ( a short time before now).
Been and Gone
- She's gone to Greece (and she is still there now).
- She's been to Greece (sometime in her life, but now she has returned).