I can cool you can cool she can cool we can cool you can cool they can cool
V-ing form
I can be cooling you can be cooling she can be cooling we can be cooling you can be cooling they can be cooling
Perfect
I can have cooled you can have cooled she can have cooled we can have cooled you can have cooled they can have cooled
V-ing perfect
I can have been cooling you can have been cooling she can have been cooling we can have been cooling you can have been cooling they can have been cooling
Negation
Simple form
I can't cool you can't cool she can't cool we can't cool you can't cool they can't cool
V-ing form
I can't be cooling you can't be cooling she can't be cooling we can't be cooling you can't be cooling they can't be cooling
Perfect
I can't have cooled you can't have cooled she can't have cooled we can't have cooled you can't have cooled they can't have cooled
V-ing perfect
I can't have been cooling you can't have been cooling she can't have been cooling we can't have been cooling you can't have been cooling they can't have been cooling
Interrogative form
Simple form
can I cool? can you cool? can she cool? can we cool? can you cool? can they cool?
V-ing form
can I be cooling? can you be cooling? can she be cooling? can we be cooling? can you be cooling? can they be cooling?
Perfect
can I have cooled? can you have cooled? can she have cooled? can we have cooled? can you have cooled? can they have cooled?
V-ing perfect
can I have been cooling? can you have been cooling? can she have been cooling? can we have been cooling? can you have been cooling? can they have been cooling?
Interro-negative form
Simple form
can't I cool? can't you cool? can't she cool? can't we cool? can't you cool? can't they cool?
V-ing form
can't I be cooling? can't you be cooling? can't she be cooling? can't we be cooling? can't you be cooling? can't they be cooling?
Perfect
can't I have cooled? can't you have cooled? can't she have cooled? can't we have cooled? can't you have cooled? can't they have cooled?
V-ing perfect
can't I have been cooling? can't you have been cooling? can't she have been cooling? can't we have been cooling? can't you have been cooling? can't they have been cooling?