English verb conjugation
COULD GRIFT

Regular verb: grift - grifted - grifted

Affirmation

Simple form	V-ing form
I could grift you could grift she could grift we could grift you could grift they could grift	I could be grifting you could be grifting she could be grifting we could be grifting you could be grifting they could be grifting
Perfect	V-ing perfect
I could have grifted you could have grifted she could have grifted we could have grifted you could have grifted they could have grifted	I could have been grifting you could have been grifting she could have been grifting we could have been grifting you could have been grifting they could have been grifting

Negation

Simple form	V-ing form
I could not grift you could not grift she could not grift we could not grift you could not grift they could not grift	I could not be grifting you could not be grifting she could not be grifting we could not be grifting you could not be grifting they could not be grifting
Perfect	V-ing perfect
I could not have grifted you could not have grifted she could not have grifted we could not have grifted you could not have grifted they could not have grifted	I could not have been grifting you could not have been grifting she could not have been grifting we could not have been grifting you could not have been grifting they could not have been grifting

Interrogative form

Simple form	V-ing form
could I grift? could you grift? could she grift? could we grift? could you grift? could they grift?	could I be grifting? could you be grifting? could she be grifting? could we be grifting? could you be grifting? could they be grifting?
Perfect	V-ing perfect
could I have grifted? could you have grifted? could she have grifted? could we have grifted? could you have grifted? could they have grifted?	could I have been grifting? could you have been grifting? could she have been grifting? could we have been grifting? could you have been grifting? could they have been grifting?

Interro-negative form

Simple form	V-ing form
could I not grift? could you not grift? could she not grift? could we not grift? could you not grift? could they not grift?	could I not be grifting? could you not be grifting? could she not be grifting? could we not be grifting? could you not be grifting? could they not be grifting?
Perfect	V-ing perfect
could I not have grifted? could you not have grifted? could she not have grifted? could we not have grifted? could you not have grifted? could they not have grifted?	could I not have been grifting? could you not have been grifting? could she not have been grifting? could we not have been grifting? could you not have been grifting? could they not have been grifting?