English verb conjugation
COULD ISOMERIZE

Regular verb: isomerize - isomerized - isomerized

Affirmation

Simple form	V-ing form
I could isomerize you could isomerize he could isomerize we could isomerize you could isomerize they could isomerize	I could be isomerizing you could be isomerizing he could be isomerizing we could be isomerizing you could be isomerizing they could be isomerizing
Perfect	V-ing perfect
I could have isomerized you could have isomerized he could have isomerized we could have isomerized you could have isomerized they could have isomerized	I could have been isomerizing you could have been isomerizing he could have been isomerizing we could have been isomerizing you could have been isomerizing they could have been isomerizing

Negation

Simple form	V-ing form
I could not isomerize you could not isomerize he could not isomerize we could not isomerize you could not isomerize they could not isomerize	I could not be isomerizing you could not be isomerizing he could not be isomerizing we could not be isomerizing you could not be isomerizing they could not be isomerizing
Perfect	V-ing perfect
I could not have isomerized you could not have isomerized he could not have isomerized we could not have isomerized you could not have isomerized they could not have isomerized	I could not have been isomerizing you could not have been isomerizing he could not have been isomerizing we could not have been isomerizing you could not have been isomerizing they could not have been isomerizing

Interrogative form

Simple form	V-ing form
could I isomerize? could you isomerize? could he isomerize? could we isomerize? could you isomerize? could they isomerize?	could I be isomerizing? could you be isomerizing? could he be isomerizing? could we be isomerizing? could you be isomerizing? could they be isomerizing?
Perfect	V-ing perfect
could I have isomerized? could you have isomerized? could he have isomerized? could we have isomerized? could you have isomerized? could they have isomerized?	could I have been isomerizing? could you have been isomerizing? could he have been isomerizing? could we have been isomerizing? could you have been isomerizing? could they have been isomerizing?

Interro-negative form

Simple form	V-ing form
could I not isomerize? could you not isomerize? could he not isomerize? could we not isomerize? could you not isomerize? could they not isomerize?	could I not be isomerizing? could you not be isomerizing? could he not be isomerizing? could we not be isomerizing? could you not be isomerizing? could they not be isomerizing?
Perfect	V-ing perfect
could I not have isomerized? could you not have isomerized? could he not have isomerized? could we not have isomerized? could you not have isomerized? could they not have isomerized?	could I not have been isomerizing? could you not have been isomerizing? could he not have been isomerizing? could we not have been isomerizing? could you not have been isomerizing? could they not have been isomerizing?