could
From WikiWord, the free dictionary
/kʊd/
English
Definitions
verb
- (auxiliary verb, defective) To know how to; to be able to.“She can speak English, French, and German. I can play football. Can you remember your fifth birthday?”
- (modal auxiliary verb, defective) May; to be permitted or enabled to.“You can go outside and play when you're finished with your homework. Can I use your pen?”
- (modal auxiliary verb, defective) To have the potential to; be possible.“Animals can experience emotions.”
- (auxiliary verb, defective) Used with verbs of perception.“Can you hear that?.”
noun
- Something that could happen, or could be the case, under different circumstances; a potentiality.