cleaer的形容词原形？

形容词原形是clean

Cats are very clean animals.

猫是颇爱干净的动物。

The plane made a clean take-off.

飞机起飞得干净利落。

Scrub the vegetables clean.

把蔬菜刷洗干净。

Her clothes were clean but dowdy.

她的衣服干净却落后于时尚了。

She licked the spoon clean.

她把调羹舔得干干净净。

cleaner作名词讲时，是清洁工，清洁剂等意思。

作形容词时，意思是清洁的，干净的。原形是clean。