English verb conjugation
COULD COLLECTIVIZE

Regular verb: collectivize - collectivized - collectivized

Affirmation

Simple form	V-ing form
I could collectivize you could collectivize he could collectivize we could collectivize you could collectivize they could collectivize	I could be collectivizing you could be collectivizing he could be collectivizing we could be collectivizing you could be collectivizing they could be collectivizing
Perfect	V-ing perfect
I could have collectivized you could have collectivized he could have collectivized we could have collectivized you could have collectivized they could have collectivized	I could have been collectivizing you could have been collectivizing he could have been collectivizing we could have been collectivizing you could have been collectivizing they could have been collectivizing

Negation

Simple form	V-ing form
I couldn't collectivize you couldn't collectivize he couldn't collectivize we couldn't collectivize you couldn't collectivize they couldn't collectivize	I couldn't be collectivizing you couldn't be collectivizing he couldn't be collectivizing we couldn't be collectivizing you couldn't be collectivizing they couldn't be collectivizing
Perfect	V-ing perfect
I couldn't have collectivized you couldn't have collectivized he couldn't have collectivized we couldn't have collectivized you couldn't have collectivized they couldn't have collectivized	I couldn't have been collectivizing you couldn't have been collectivizing he couldn't have been collectivizing we couldn't have been collectivizing you couldn't have been collectivizing they couldn't have been collectivizing

Interrogative form

Simple form	V-ing form
could I collectivize? could you collectivize? could he collectivize? could we collectivize? could you collectivize? could they collectivize?	could I be collectivizing? could you be collectivizing? could he be collectivizing? could we be collectivizing? could you be collectivizing? could they be collectivizing?
Perfect	V-ing perfect
could I have collectivized? could you have collectivized? could he have collectivized? could we have collectivized? could you have collectivized? could they have collectivized?	could I have been collectivizing? could you have been collectivizing? could he have been collectivizing? could we have been collectivizing? could you have been collectivizing? could they have been collectivizing?

Interro-negative form

Simple form	V-ing form
couldn't I collectivize? couldn't you collectivize? couldn't he collectivize? couldn't we collectivize? couldn't you collectivize? couldn't they collectivize?	couldn't I be collectivizing? couldn't you be collectivizing? couldn't he be collectivizing? couldn't we be collectivizing? couldn't you be collectivizing? couldn't they be collectivizing?
Perfect	V-ing perfect
couldn't I have collectivized? couldn't you have collectivized? couldn't he have collectivized? couldn't we have collectivized? couldn't you have collectivized? couldn't they have collectivized?	couldn't I have been collectivizing? couldn't you have been collectivizing? couldn't he have been collectivizing? couldn't we have been collectivizing? couldn't you have been collectivizing? couldn't they have been collectivizing?