1.I/not speak/to you for a long time.
I have not spoken to you for a long time.
2.I think/you meet/a nice boy.
I think you have met a nice boy.
3.I/talk/to a friend about your problem.
I have benn talking to a friend about your problem.
4.You and Andy/have/a good time.
You and Andy have had a good time.
5.He /help/you at work
He have been helping you at work.
6.Relax! You/not see/each other for long!
ReLAX! You have not seen each other for a long!