English verb conjugation
COULD INSIST

Regular verb: insist - insisted - insisted

Affirmation

Simple form	V-ing form
I could insist you could insist he could insist we could insist you could insist they could insist	I could be insisting you could be insisting he could be insisting we could be insisting you could be insisting they could be insisting
Perfect	V-ing perfect
I could have insisted you could have insisted he could have insisted we could have insisted you could have insisted they could have insisted	I could have been insisting you could have been insisting he could have been insisting we could have been insisting you could have been insisting they could have been insisting

Negation

Simple form	V-ing form
I could not insist you could not insist he could not insist we could not insist you could not insist they could not insist	I could not be insisting you could not be insisting he could not be insisting we could not be insisting you could not be insisting they could not be insisting
Perfect	V-ing perfect
I could not have insisted you could not have insisted he could not have insisted we could not have insisted you could not have insisted they could not have insisted	I could not have been insisting you could not have been insisting he could not have been insisting we could not have been insisting you could not have been insisting they could not have been insisting

Interrogative form

Simple form	V-ing form
could I insist? could you insist? could he insist? could we insist? could you insist? could they insist?	could I be insisting? could you be insisting? could he be insisting? could we be insisting? could you be insisting? could they be insisting?
Perfect	V-ing perfect
could I have insisted? could you have insisted? could he have insisted? could we have insisted? could you have insisted? could they have insisted?	could I have been insisting? could you have been insisting? could he have been insisting? could we have been insisting? could you have been insisting? could they have been insisting?

Interro-negative form

Simple form	V-ing form
could I not insist? could you not insist? could he not insist? could we not insist? could you not insist? could they not insist?	could I not be insisting? could you not be insisting? could he not be insisting? could we not be insisting? could you not be insisting? could they not be insisting?
Perfect	V-ing perfect
could I not have insisted? could you not have insisted? could he not have insisted? could we not have insisted? could you not have insisted? could they not have insisted?	could I not have been insisting? could you not have been insisting? could he not have been insisting? could we not have been insisting? could you not have been insisting? could they not have been insisting?