I could curry you could curry he could curry we could curry you could curry they could curry
V-ing form
I could be currying you could be currying he could be currying we could be currying you could be currying they could be currying
Perfect
I could have curried you could have curried he could have curried we could have curried you could have curried they could have curried
V-ing perfect
I could have been currying you could have been currying he could have been currying we could have been currying you could have been currying they could have been currying
Negation
Simple form
I could not curry you could not curry he could not curry we could not curry you could not curry they could not curry
V-ing form
I could not be currying you could not be currying he could not be currying we could not be currying you could not be currying they could not be currying
Perfect
I could not have curried you could not have curried he could not have curried we could not have curried you could not have curried they could not have curried
V-ing perfect
I could not have been currying you could not have been currying he could not have been currying we could not have been currying you could not have been currying they could not have been currying
Interrogative form
Simple form
could I curry? could you curry? could he curry? could we curry? could you curry? could they curry?
V-ing form
could I be currying? could you be currying? could he be currying? could we be currying? could you be currying? could they be currying?
Perfect
could I have curried? could you have curried? could he have curried? could we have curried? could you have curried? could they have curried?
V-ing perfect
could I have been currying? could you have been currying? could he have been currying? could we have been currying? could you have been currying? could they have been currying?
Interro-negative form
Simple form
could I not curry? could you not curry? could he not curry? could we not curry? could you not curry? could they not curry?
V-ing form
could I not be currying? could you not be currying? could he not be currying? could we not be currying? could you not be currying? could they not be currying?
Perfect
could I not have curried? could you not have curried? could he not have curried? could we not have curried? could you not have curried? could they not have curried?
V-ing perfect
could I not have been currying? could you not have been currying? could he not have been currying? could we not have been currying? could you not have been currying? could they not have been currying?