I could collectivize you could collectivize she could collectivize we could collectivize you could collectivize they could collectivize
V-ing form
I could be collectivizing you could be collectivizing she could be collectivizing we could be collectivizing you could be collectivizing they could be collectivizing
Perfect
I could have collectivized you could have collectivized she could have collectivized we could have collectivized you could have collectivized they could have collectivized
V-ing perfect
I could have been collectivizing you could have been collectivizing she could have been collectivizing we could have been collectivizing you could have been collectivizing they could have been collectivizing
Negation
Simple form
I could not collectivize you could not collectivize she could not collectivize we could not collectivize you could not collectivize they could not collectivize
V-ing form
I could not be collectivizing you could not be collectivizing she could not be collectivizing we could not be collectivizing you could not be collectivizing they could not be collectivizing
Perfect
I could not have collectivized you could not have collectivized she could not have collectivized we could not have collectivized you could not have collectivized they could not have collectivized
V-ing perfect
I could not have been collectivizing you could not have been collectivizing she could not have been collectivizing we could not have been collectivizing you could not have been collectivizing they could not have been collectivizing
Interrogative form
Simple form
could I collectivize? could you collectivize? could she collectivize? could we collectivize? could you collectivize? could they collectivize?
V-ing form
could I be collectivizing? could you be collectivizing? could she be collectivizing? could we be collectivizing? could you be collectivizing? could they be collectivizing?
Perfect
could I have collectivized? could you have collectivized? could she have collectivized? could we have collectivized? could you have collectivized? could they have collectivized?
V-ing perfect
could I have been collectivizing? could you have been collectivizing? could she have been collectivizing? could we have been collectivizing? could you have been collectivizing? could they have been collectivizing?
Interro-negative form
Simple form
could I not collectivize? could you not collectivize? could she not collectivize? could we not collectivize? could you not collectivize? could they not collectivize?
V-ing form
could I not be collectivizing? could you not be collectivizing? could she not be collectivizing? could we not be collectivizing? could you not be collectivizing? could they not be collectivizing?
Perfect
could I not have collectivized? could you not have collectivized? could she not have collectivized? could we not have collectivized? could you not have collectivized? could they not have collectivized?
V-ing perfect
could I not have been collectivizing? could you not have been collectivizing? could she not have been collectivizing? could we not have been collectivizing? could you not have been collectivizing? could they not have been collectivizing?