His plan is to clean the room.(他的計劃是打掃房間。)

Either I or he is going to clean the room.(或我或他將去打掃那個房間。)

If I clean the room, you wash the dishes.(如果我清掃房間，你就洗碟子。)

I often help Granny Wang clean the room.(我常常幫助王奶奶打掃房間。)

Can you help me to clean the room?(你能幫我打掃房間衛生嗎？)

Who can help me clean the room?(答案：誰能幫我打掃房間？)

Let him (them) clean the room.(讓他(他們)去打掃房間吧。)

He instructed us to clean the room.(他命令我們清掃房間。)

So I must clean the room before she comes.(所以我必須在她來之前把房間打掃干凈。)

The children help to clean the room.(孩子們幫助打掃房間的衛生。)