English verb conjugation
COULD CIRCULARIZE

Regular verb: circularize - circularized - circularized

Affirmation

Simple form	V-ing form
I could circularize you could circularize he could circularize we could circularize you could circularize they could circularize	I could be circularizing you could be circularizing he could be circularizing we could be circularizing you could be circularizing they could be circularizing
Perfect	V-ing perfect
I could have circularized you could have circularized he could have circularized we could have circularized you could have circularized they could have circularized	I could have been circularizing you could have been circularizing he could have been circularizing we could have been circularizing you could have been circularizing they could have been circularizing

Negation

Simple form	V-ing form
I couldn't circularize you couldn't circularize he couldn't circularize we couldn't circularize you couldn't circularize they couldn't circularize	I couldn't be circularizing you couldn't be circularizing he couldn't be circularizing we couldn't be circularizing you couldn't be circularizing they couldn't be circularizing
Perfect	V-ing perfect
I couldn't have circularized you couldn't have circularized he couldn't have circularized we couldn't have circularized you couldn't have circularized they couldn't have circularized	I couldn't have been circularizing you couldn't have been circularizing he couldn't have been circularizing we couldn't have been circularizing you couldn't have been circularizing they couldn't have been circularizing

Interrogative form

Simple form	V-ing form
could I circularize? could you circularize? could he circularize? could we circularize? could you circularize? could they circularize?	could I be circularizing? could you be circularizing? could he be circularizing? could we be circularizing? could you be circularizing? could they be circularizing?
Perfect	V-ing perfect
could I have circularized? could you have circularized? could he have circularized? could we have circularized? could you have circularized? could they have circularized?	could I have been circularizing? could you have been circularizing? could he have been circularizing? could we have been circularizing? could you have been circularizing? could they have been circularizing?

Interro-negative form

Simple form	V-ing form
couldn't I circularize? couldn't you circularize? couldn't he circularize? couldn't we circularize? couldn't you circularize? couldn't they circularize?	couldn't I be circularizing? couldn't you be circularizing? couldn't he be circularizing? couldn't we be circularizing? couldn't you be circularizing? couldn't they be circularizing?
Perfect	V-ing perfect
couldn't I have circularized? couldn't you have circularized? couldn't he have circularized? couldn't we have circularized? couldn't you have circularized? couldn't they have circularized?	couldn't I have been circularizing? couldn't you have been circularizing? couldn't he have been circularizing? couldn't we have been circularizing? couldn't you have been circularizing? couldn't they have been circularizing?