English verb conjugation
COULD COOL

Regular verb: cool - cooled - cooled

Affirmation

Simple form	V-ing form
I could cool you could cool she could cool we could cool you could cool they could cool	I could be cooling you could be cooling she could be cooling we could be cooling you could be cooling they could be cooling
Perfect	V-ing perfect
I could have cooled you could have cooled she could have cooled we could have cooled you could have cooled they could have cooled	I could have been cooling you could have been cooling she could have been cooling we could have been cooling you could have been cooling they could have been cooling

Negation

Simple form	V-ing form
I could not cool you could not cool she could not cool we could not cool you could not cool they could not cool	I could not be cooling you could not be cooling she could not be cooling we could not be cooling you could not be cooling they could not be cooling
Perfect	V-ing perfect
I could not have cooled you could not have cooled she could not have cooled we could not have cooled you could not have cooled they could not have cooled	I could not have been cooling you could not have been cooling she could not have been cooling we could not have been cooling you could not have been cooling they could not have been cooling

Interrogative form

Simple form	V-ing form
could I cool? could you cool? could she cool? could we cool? could you cool? could they cool?	could I be cooling? could you be cooling? could she be cooling? could we be cooling? could you be cooling? could they be cooling?
Perfect	V-ing perfect
could I have cooled? could you have cooled? could she have cooled? could we have cooled? could you have cooled? could they have cooled?	could I have been cooling? could you have been cooling? could she have been cooling? could we have been cooling? could you have been cooling? could they have been cooling?

Interro-negative form

Simple form	V-ing form
could I not cool? could you not cool? could she not cool? could we not cool? could you not cool? could they not cool?	could I not be cooling? could you not be cooling? could she not be cooling? could we not be cooling? could you not be cooling? could they not be cooling?
Perfect	V-ing perfect
could I not have cooled? could you not have cooled? could she not have cooled? could we not have cooled? could you not have cooled? could they not have cooled?	could I not have been cooling? could you not have been cooling? could she not have been cooling? could we not have been cooling? could you not have been cooling? could they not have been cooling?