This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

auxiliary-verb. Used to indicate ability or permission in the past: I could run faster then. Only men could go to the club in those days.

auxiliary-verb. Used with hypothetical or conditional force: If we could help, we would.

auxiliary-verb. Used to indicate tentativeness or politeness: I could be wrong. Could you come over here?

v. Simple past of can.

v. Used to politely ask for permission to do something.

v. Used to politely ask for someone else to do something.

v. Used to show the possibility that something might happen.

v. Used to suggest something.

imperative. Was, should be, or would be, able, capable, or susceptible. Used as an auxiliary, in the past tense or in the conditional present.

n. Preterit of can.

"I used to always wonder why I could be so awful to my family my parents, my sister, and I think it's because I knew I *could* be so mean to them & they would always be there."

English tag questions   

would    can    should   

couldst    couldn't    could've   

can   

Hood    Wood    good    goode    hood    misunderstood    should    stood    understood    withstood   

can    shall    sail    may    must    ought    latter    did    dare    if