English verb conjugation
COULD POOL

Regular verb: pool - pooled - pooled

Affirmation

Simple form	V-ing form
I could pool you could pool he could pool we could pool you could pool they could pool	I could be pooling you could be pooling he could be pooling we could be pooling you could be pooling they could be pooling
Perfect	V-ing perfect
I could have pooled you could have pooled he could have pooled we could have pooled you could have pooled they could have pooled	I could have been pooling you could have been pooling he could have been pooling we could have been pooling you could have been pooling they could have been pooling

Negation

Simple form	V-ing form
I couldn't pool you couldn't pool he couldn't pool we couldn't pool you couldn't pool they couldn't pool	I couldn't be pooling you couldn't be pooling he couldn't be pooling we couldn't be pooling you couldn't be pooling they couldn't be pooling
Perfect	V-ing perfect
I couldn't have pooled you couldn't have pooled he couldn't have pooled we couldn't have pooled you couldn't have pooled they couldn't have pooled	I couldn't have been pooling you couldn't have been pooling he couldn't have been pooling we couldn't have been pooling you couldn't have been pooling they couldn't have been pooling

Interrogative form

Simple form	V-ing form
could I pool? could you pool? could he pool? could we pool? could you pool? could they pool?	could I be pooling? could you be pooling? could he be pooling? could we be pooling? could you be pooling? could they be pooling?
Perfect	V-ing perfect
could I have pooled? could you have pooled? could he have pooled? could we have pooled? could you have pooled? could they have pooled?	could I have been pooling? could you have been pooling? could he have been pooling? could we have been pooling? could you have been pooling? could they have been pooling?

Interro-negative form

Simple form	V-ing form
couldn't I pool? couldn't you pool? couldn't he pool? couldn't we pool? couldn't you pool? couldn't they pool?	couldn't I be pooling? couldn't you be pooling? couldn't he be pooling? couldn't we be pooling? couldn't you be pooling? couldn't they be pooling?
Perfect	V-ing perfect
couldn't I have pooled? couldn't you have pooled? couldn't he have pooled? couldn't we have pooled? couldn't you have pooled? couldn't they have pooled?	couldn't I have been pooling? couldn't you have been pooling? couldn't he have been pooling? couldn't we have been pooling? couldn't you have been pooling? couldn't they have been pooling?