English verb conjugation
COULD QUIP

Regular verb: quip - quipped - quipped

Affirmation

Simple form	V-ing form
I could quip you could quip he could quip we could quip you could quip they could quip	I could be quipping you could be quipping he could be quipping we could be quipping you could be quipping they could be quipping
Perfect	V-ing perfect
I could have quipped you could have quipped he could have quipped we could have quipped you could have quipped they could have quipped	I could have been quipping you could have been quipping he could have been quipping we could have been quipping you could have been quipping they could have been quipping

Negation

Simple form	V-ing form
I could not quip you could not quip he could not quip we could not quip you could not quip they could not quip	I could not be quipping you could not be quipping he could not be quipping we could not be quipping you could not be quipping they could not be quipping
Perfect	V-ing perfect
I could not have quipped you could not have quipped he could not have quipped we could not have quipped you could not have quipped they could not have quipped	I could not have been quipping you could not have been quipping he could not have been quipping we could not have been quipping you could not have been quipping they could not have been quipping

Interrogative form

Simple form	V-ing form
could I quip? could you quip? could he quip? could we quip? could you quip? could they quip?	could I be quipping? could you be quipping? could he be quipping? could we be quipping? could you be quipping? could they be quipping?
Perfect	V-ing perfect
could I have quipped? could you have quipped? could he have quipped? could we have quipped? could you have quipped? could they have quipped?	could I have been quipping? could you have been quipping? could he have been quipping? could we have been quipping? could you have been quipping? could they have been quipping?

Interro-negative form

Simple form	V-ing form
could I not quip? could you not quip? could he not quip? could we not quip? could you not quip? could they not quip?	could I not be quipping? could you not be quipping? could he not be quipping? could we not be quipping? could you not be quipping? could they not be quipping?
Perfect	V-ing perfect
could I not have quipped? could you not have quipped? could he not have quipped? could we not have quipped? could you not have quipped? could they not have quipped?	could I not have been quipping? could you not have been quipping? could he not have been quipping? could we not have been quipping? could you not have been quipping? could they not have been quipping?