clean用作动词的基本意思是“使清洁; 变干净”,指通过洗、扫、掸等手段以清除异物,也可作“清扫”。也可用作形容词意思是“清洁的,干净的”下面看一下clean的过去式和过去分词以及比较级、最高级
第三人称单数：cleans
复数：cleans
现在分词：cleaning
过去式：cleaned
过去分词：cleaned
比较级：cleaner
最高级：cleanest
例句：
And you are clean, but not all.
你们原是洁净的，但不都是。
Your hair should be clean and combed.
你的头发应该是清洁和梳理。
When he had finished washing he began to wipe the basin clean.
他清洗完后开始把洗脸池擦拭干净。
If you kept your nose clean, you had a job for life.
如果你规规矩矩，就可以一辈子都捧着这个饭碗。
I have to clean my room and do my homework.
我今天必须清扫我的房间，做家庭作业。
He rubbed and rubbed but couldn't seem to get clean.
他擦了又擦，可就是擦不干净。
I would love a hot bath and clean clothes.
要是能洗个热水澡、换身干净的衣服就太好了。
