English verb conjugation
COULD DEPOLYMERIZE

Regular verb: depolymerize - depolymerized - depolymerized

Affirmation

Simple form	V-ing form
I could depolymerize you could depolymerize she could depolymerize we could depolymerize you could depolymerize they could depolymerize	I could be depolymerizing you could be depolymerizing she could be depolymerizing we could be depolymerizing you could be depolymerizing they could be depolymerizing
Perfect	V-ing perfect
I could have depolymerized you could have depolymerized she could have depolymerized we could have depolymerized you could have depolymerized they could have depolymerized	I could have been depolymerizing you could have been depolymerizing she could have been depolymerizing we could have been depolymerizing you could have been depolymerizing they could have been depolymerizing

Negation

Simple form	V-ing form
I couldn't depolymerize you couldn't depolymerize she couldn't depolymerize we couldn't depolymerize you couldn't depolymerize they couldn't depolymerize	I couldn't be depolymerizing you couldn't be depolymerizing she couldn't be depolymerizing we couldn't be depolymerizing you couldn't be depolymerizing they couldn't be depolymerizing
Perfect	V-ing perfect
I couldn't have depolymerized you couldn't have depolymerized she couldn't have depolymerized we couldn't have depolymerized you couldn't have depolymerized they couldn't have depolymerized	I couldn't have been depolymerizing you couldn't have been depolymerizing she couldn't have been depolymerizing we couldn't have been depolymerizing you couldn't have been depolymerizing they couldn't have been depolymerizing

Interrogative form

Simple form	V-ing form
could I depolymerize? could you depolymerize? could she depolymerize? could we depolymerize? could you depolymerize? could they depolymerize?	could I be depolymerizing? could you be depolymerizing? could she be depolymerizing? could we be depolymerizing? could you be depolymerizing? could they be depolymerizing?
Perfect	V-ing perfect
could I have depolymerized? could you have depolymerized? could she have depolymerized? could we have depolymerized? could you have depolymerized? could they have depolymerized?	could I have been depolymerizing? could you have been depolymerizing? could she have been depolymerizing? could we have been depolymerizing? could you have been depolymerizing? could they have been depolymerizing?

Interro-negative form

Simple form	V-ing form
couldn't I depolymerize? couldn't you depolymerize? couldn't she depolymerize? couldn't we depolymerize? couldn't you depolymerize? couldn't they depolymerize?	couldn't I be depolymerizing? couldn't you be depolymerizing? couldn't she be depolymerizing? couldn't we be depolymerizing? couldn't you be depolymerizing? couldn't they be depolymerizing?
Perfect	V-ing perfect
couldn't I have depolymerized? couldn't you have depolymerized? couldn't she have depolymerized? couldn't we have depolymerized? couldn't you have depolymerized? couldn't they have depolymerized?	couldn't I have been depolymerizing? couldn't you have been depolymerizing? couldn't she have been depolymerizing? couldn't we have been depolymerizing? couldn't you have been depolymerizing? couldn't they have been depolymerizing?