English verb conjugation
COULD COME UP WITH STH

Regular verb: come up with sth - come up with sthed - come up with sthed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could come up with sth you could come up with sth he could come up with sth we could come up with sth you could come up with sth they could come up with sth	I could be come up with sthing you could be come up with sthing he could be come up with sthing we could be come up with sthing you could be come up with sthing they could be come up with sthing
Perfect	V-ing perfect
I could have come up with sthed you could have come up with sthed he could have come up with sthed we could have come up with sthed you could have come up with sthed they could have come up with sthed	I could have been come up with sthing you could have been come up with sthing he could have been come up with sthing we could have been come up with sthing you could have been come up with sthing they could have been come up with sthing

Negation

Simple form	V-ing form
I could not come up with sth you could not come up with sth he could not come up with sth we could not come up with sth you could not come up with sth they could not come up with sth	I could not be come up with sthing you could not be come up with sthing he could not be come up with sthing we could not be come up with sthing you could not be come up with sthing they could not be come up with sthing
Perfect	V-ing perfect
I could not have come up with sthed you could not have come up with sthed he could not have come up with sthed we could not have come up with sthed you could not have come up with sthed they could not have come up with sthed	I could not have been come up with sthing you could not have been come up with sthing he could not have been come up with sthing we could not have been come up with sthing you could not have been come up with sthing they could not have been come up with sthing

Interrogative form

Simple form	V-ing form
could I come up with sth? could you come up with sth? could he come up with sth? could we come up with sth? could you come up with sth? could they come up with sth?	could I be come up with sthing? could you be come up with sthing? could he be come up with sthing? could we be come up with sthing? could you be come up with sthing? could they be come up with sthing?
Perfect	V-ing perfect
could I have come up with sthed? could you have come up with sthed? could he have come up with sthed? could we have come up with sthed? could you have come up with sthed? could they have come up with sthed?	could I have been come up with sthing? could you have been come up with sthing? could he have been come up with sthing? could we have been come up with sthing? could you have been come up with sthing? could they have been come up with sthing?

Interro-negative form

Simple form	V-ing form
could I not come up with sth? could you not come up with sth? could he not come up with sth? could we not come up with sth? could you not come up with sth? could they not come up with sth?	could I not be come up with sthing? could you not be come up with sthing? could he not be come up with sthing? could we not be come up with sthing? could you not be come up with sthing? could they not be come up with sthing?
Perfect	V-ing perfect
could I not have come up with sthed? could you not have come up with sthed? could he not have come up with sthed? could we not have come up with sthed? could you not have come up with sthed? could they not have come up with sthed?	could I not have been come up with sthing? could you not have been come up with sthing? could he not have been come up with sthing? could we not have been come up with sthing? could you not have been come up with sthing? could they not have been come up with sthing?