He is too sad to fall asleep.He is not calm(平静) enough to fall asleep.He is too short to touch the apple on the table.He is not tall enough to touch the apple on the table.He is too fat to win the game .He is not thin enough to win the game.
He was too sad to fall asleep=He was not happy enough to fall asleep.He was too short to catch the apple which was on the table=He was not tall enough to catch the apple which was on the table.He was too fat to win the match=He was not thin enough towin the match
