English verb conjugation
COULD DEPRESSURIZE

Regular verb: depressurize - depressurized - depressurized

Affirmation

Simple form	V-ing form
I could depressurize you could depressurize he could depressurize we could depressurize you could depressurize they could depressurize	I could be depressurizing you could be depressurizing he could be depressurizing we could be depressurizing you could be depressurizing they could be depressurizing
Perfect	V-ing perfect
I could have depressurized you could have depressurized he could have depressurized we could have depressurized you could have depressurized they could have depressurized	I could have been depressurizing you could have been depressurizing he could have been depressurizing we could have been depressurizing you could have been depressurizing they could have been depressurizing

Negation

Simple form	V-ing form
I could not depressurize you could not depressurize he could not depressurize we could not depressurize you could not depressurize they could not depressurize	I could not be depressurizing you could not be depressurizing he could not be depressurizing we could not be depressurizing you could not be depressurizing they could not be depressurizing
Perfect	V-ing perfect
I could not have depressurized you could not have depressurized he could not have depressurized we could not have depressurized you could not have depressurized they could not have depressurized	I could not have been depressurizing you could not have been depressurizing he could not have been depressurizing we could not have been depressurizing you could not have been depressurizing they could not have been depressurizing

Interrogative form

Simple form	V-ing form
could I depressurize? could you depressurize? could he depressurize? could we depressurize? could you depressurize? could they depressurize?	could I be depressurizing? could you be depressurizing? could he be depressurizing? could we be depressurizing? could you be depressurizing? could they be depressurizing?
Perfect	V-ing perfect
could I have depressurized? could you have depressurized? could he have depressurized? could we have depressurized? could you have depressurized? could they have depressurized?	could I have been depressurizing? could you have been depressurizing? could he have been depressurizing? could we have been depressurizing? could you have been depressurizing? could they have been depressurizing?

Interro-negative form

Simple form	V-ing form
could I not depressurize? could you not depressurize? could he not depressurize? could we not depressurize? could you not depressurize? could they not depressurize?	could I not be depressurizing? could you not be depressurizing? could he not be depressurizing? could we not be depressurizing? could you not be depressurizing? could they not be depressurizing?
Perfect	V-ing perfect
could I not have depressurized? could you not have depressurized? could he not have depressurized? could we not have depressurized? could you not have depressurized? could they not have depressurized?	could I not have been depressurizing? could you not have been depressurizing? could he not have been depressurizing? could we not have been depressurizing? could you not have been depressurizing? could they not have been depressurizing?