02/12/03 (Intermediate Skills)

[ make sentences ]

(use Present Perfect)
I've eaten Thai food.
I've already finished my homework

(use Since)
I've been in the U.S. since August, 2001.
I've liked music since I was a child.

(use For)
I've been in the U.S. for one and half years.
I've studied English for one and half years.

(use Present Perfect Progressive)
It has been raining since yesterday.
She has been teaching English for ten years.