being done:(動作)正在實施.
例:The coat is being washed.
(某人)正在洗衣服.
done:(動作)已經(jīng)被實施.
例:The coat is washed.
(某人)已經(jīng)洗過衣服.
to be done:(動作)尚待實施.
例:The coat is to be washed.
衣服需要有人來洗.