chew
1. He chews gum
whenever he watches a basketball game.
2. He chewed gum
to reduce his stress yesterday.
3. He will chew
gum at the basketball game later.
4. He is chewing
gum.
5. He was chewing
gum while he was watching the basketball game yesterday.
6. He will be chewing
gum when he watches the game tomorrow.
7. He has chewed
gum for 20 minutes.
8. He had chewed gum
for 20 minutes before the basketball
game started.
9. He will have chewed
gum for 20 minutes by the time the basketball game is over.
10. He has been chewing
gum for 20 minutes
11. He had been chewing
gum for 20 minutes when the basketball game
was over.
12. He will have been
chewing gum for 40 minutes by the time when
the basketball game is over. |