English verb conjugation
COULD COOL

Regular verb: cool - cooled - cooled

Affirmation

Simple form	V-ing form
I could cool you could cool he could cool we could cool you could cool they could cool	I could be cooling you could be cooling he 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 he 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 he 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 couldn't cool you couldn't cool he couldn't cool we couldn't cool you couldn't cool they couldn't cool	I couldn't be cooling you couldn't be cooling he couldn't be cooling we couldn't be cooling you couldn't be cooling they couldn't be cooling
Perfect	V-ing perfect
I couldn't have cooled you couldn't have cooled he couldn't have cooled we couldn't have cooled you couldn't have cooled they couldn't have cooled	I couldn't have been cooling you couldn't have been cooling he couldn't have been cooling we couldn't have been cooling you couldn't have been cooling they couldn't have been cooling

Interrogative form

Simple form	V-ing form
could I cool? could you cool? could he cool? could we cool? could you cool? could they cool?	could I be cooling? could you be cooling? could he 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 he 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 he 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
couldn't I cool? couldn't you cool? couldn't he cool? couldn't we cool? couldn't you cool? couldn't they cool?	couldn't I be cooling? couldn't you be cooling? couldn't he be cooling? couldn't we be cooling? couldn't you be cooling? couldn't they be cooling?
Perfect	V-ing perfect
couldn't I have cooled? couldn't you have cooled? couldn't he have cooled? couldn't we have cooled? couldn't you have cooled? couldn't they have cooled?	couldn't I have been cooling? couldn't you have been cooling? couldn't he have been cooling? couldn't we have been cooling? couldn't you have been cooling? couldn't they have been cooling?