English verb conjugation
COULD BOUNCE

Regular verb: bounce - bounced - bounced

Affirmation

Simple form	V-ing form
I could bounce you could bounce she could bounce we could bounce you could bounce they could bounce	I could be bouncing you could be bouncing she could be bouncing we could be bouncing you could be bouncing they could be bouncing
Perfect	V-ing perfect
I could have bounced you could have bounced she could have bounced we could have bounced you could have bounced they could have bounced	I could have been bouncing you could have been bouncing she could have been bouncing we could have been bouncing you could have been bouncing they could have been bouncing

Negation

Simple form	V-ing form
I could not bounce you could not bounce she could not bounce we could not bounce you could not bounce they could not bounce	I could not be bouncing you could not be bouncing she could not be bouncing we could not be bouncing you could not be bouncing they could not be bouncing
Perfect	V-ing perfect
I could not have bounced you could not have bounced she could not have bounced we could not have bounced you could not have bounced they could not have bounced	I could not have been bouncing you could not have been bouncing she could not have been bouncing we could not have been bouncing you could not have been bouncing they could not have been bouncing

Interrogative form

Simple form	V-ing form
could I bounce? could you bounce? could she bounce? could we bounce? could you bounce? could they bounce?	could I be bouncing? could you be bouncing? could she be bouncing? could we be bouncing? could you be bouncing? could they be bouncing?
Perfect	V-ing perfect
could I have bounced? could you have bounced? could she have bounced? could we have bounced? could you have bounced? could they have bounced?	could I have been bouncing? could you have been bouncing? could she have been bouncing? could we have been bouncing? could you have been bouncing? could they have been bouncing?

Interro-negative form

Simple form	V-ing form
could I not bounce? could you not bounce? could she not bounce? could we not bounce? could you not bounce? could they not bounce?	could I not be bouncing? could you not be bouncing? could she not be bouncing? could we not be bouncing? could you not be bouncing? could they not be bouncing?
Perfect	V-ing perfect
could I not have bounced? could you not have bounced? could she not have bounced? could we not have bounced? could you not have bounced? could they not have bounced?	could I not have been bouncing? could you not have been bouncing? could she not have been bouncing? could we not have been bouncing? could you not have been bouncing? could they not have been bouncing?