English verb conjugation
COULD RIP

Regular verb: rip - ripped - ripped

Affirmation

Simple form	V-ing form
I could rip you could rip he could rip we could rip you could rip they could rip	I could be ripping you could be ripping he could be ripping we could be ripping you could be ripping they could be ripping
Perfect	V-ing perfect
I could have ripped you could have ripped he could have ripped we could have ripped you could have ripped they could have ripped	I could have been ripping you could have been ripping he could have been ripping we could have been ripping you could have been ripping they could have been ripping

Negation

Simple form	V-ing form
I could not rip you could not rip he could not rip we could not rip you could not rip they could not rip	I could not be ripping you could not be ripping he could not be ripping we could not be ripping you could not be ripping they could not be ripping
Perfect	V-ing perfect
I could not have ripped you could not have ripped he could not have ripped we could not have ripped you could not have ripped they could not have ripped	I could not have been ripping you could not have been ripping he could not have been ripping we could not have been ripping you could not have been ripping they could not have been ripping

Interrogative form

Simple form	V-ing form
could I rip? could you rip? could he rip? could we rip? could you rip? could they rip?	could I be ripping? could you be ripping? could he be ripping? could we be ripping? could you be ripping? could they be ripping?
Perfect	V-ing perfect
could I have ripped? could you have ripped? could he have ripped? could we have ripped? could you have ripped? could they have ripped?	could I have been ripping? could you have been ripping? could he have been ripping? could we have been ripping? could you have been ripping? could they have been ripping?

Interro-negative form

Simple form	V-ing form
could I not rip? could you not rip? could he not rip? could we not rip? could you not rip? could they not rip?	could I not be ripping? could you not be ripping? could he not be ripping? could we not be ripping? could you not be ripping? could they not be ripping?
Perfect	V-ing perfect
could I not have ripped? could you not have ripped? could he not have ripped? could we not have ripped? could you not have ripped? could they not have ripped?	could I not have been ripping? could you not have been ripping? could he not have been ripping? could we not have been ripping? could you not have been ripping? could they not have been ripping?