Peter HAS WASHED his car today.
Peter HAS BEEN WASHING his car since 2 o'clock.
Bill HAS WRITTEN many books.
Bill HAS BEEN WRITING his new book for 2 years.
Peter HAS WASHED his car today.
Peter HAS BEEN WASHING his car since 2 o'clock.
Bill HAS WRITTEN many books.
Bill HAS BEEN WRITING his new book for 2 years.