English verb conjugation
COULD DESULFERIZE

Regular verb: desulferize - desulferized - desulferized

Affirmation

Simple form	V-ing form
I could desulferize you could desulferize she could desulferize we could desulferize you could desulferize they could desulferize	I could be desulferizing you could be desulferizing she could be desulferizing we could be desulferizing you could be desulferizing they could be desulferizing
Perfect	V-ing perfect
I could have desulferized you could have desulferized she could have desulferized we could have desulferized you could have desulferized they could have desulferized	I could have been desulferizing you could have been desulferizing she could have been desulferizing we could have been desulferizing you could have been desulferizing they could have been desulferizing

Negation

Simple form	V-ing form
I could not desulferize you could not desulferize she could not desulferize we could not desulferize you could not desulferize they could not desulferize	I could not be desulferizing you could not be desulferizing she could not be desulferizing we could not be desulferizing you could not be desulferizing they could not be desulferizing
Perfect	V-ing perfect
I could not have desulferized you could not have desulferized she could not have desulferized we could not have desulferized you could not have desulferized they could not have desulferized	I could not have been desulferizing you could not have been desulferizing she could not have been desulferizing we could not have been desulferizing you could not have been desulferizing they could not have been desulferizing

Interrogative form

Simple form	V-ing form
could I desulferize? could you desulferize? could she desulferize? could we desulferize? could you desulferize? could they desulferize?	could I be desulferizing? could you be desulferizing? could she be desulferizing? could we be desulferizing? could you be desulferizing? could they be desulferizing?
Perfect	V-ing perfect
could I have desulferized? could you have desulferized? could she have desulferized? could we have desulferized? could you have desulferized? could they have desulferized?	could I have been desulferizing? could you have been desulferizing? could she have been desulferizing? could we have been desulferizing? could you have been desulferizing? could they have been desulferizing?

Interro-negative form

Simple form	V-ing form
could I not desulferize? could you not desulferize? could she not desulferize? could we not desulferize? could you not desulferize? could they not desulferize?	could I not be desulferizing? could you not be desulferizing? could she not be desulferizing? could we not be desulferizing? could you not be desulferizing? could they not be desulferizing?
Perfect	V-ing perfect
could I not have desulferized? could you not have desulferized? could she not have desulferized? could we not have desulferized? could you not have desulferized? could they not have desulferized?	could I not have been desulferizing? could you not have been desulferizing? could she not have been desulferizing? could we not have been desulferizing? could you not have been desulferizing? could they not have been desulferizing?