English verb conjugation
COULD REVIEW

Regular verb: review - reviewed - reviewed

Affirmation

Simple form	V-ing form
I could review you could review he could review we could review you could review they could review	I could be reviewing you could be reviewing he could be reviewing we could be reviewing you could be reviewing they could be reviewing
Perfect	V-ing perfect
I could have reviewed you could have reviewed he could have reviewed we could have reviewed you could have reviewed they could have reviewed	I could have been reviewing you could have been reviewing he could have been reviewing we could have been reviewing you could have been reviewing they could have been reviewing

Negation

Simple form	V-ing form
I could not review you could not review he could not review we could not review you could not review they could not review	I could not be reviewing you could not be reviewing he could not be reviewing we could not be reviewing you could not be reviewing they could not be reviewing
Perfect	V-ing perfect
I could not have reviewed you could not have reviewed he could not have reviewed we could not have reviewed you could not have reviewed they could not have reviewed	I could not have been reviewing you could not have been reviewing he could not have been reviewing we could not have been reviewing you could not have been reviewing they could not have been reviewing

Interrogative form

Simple form	V-ing form
could I review? could you review? could he review? could we review? could you review? could they review?	could I be reviewing? could you be reviewing? could he be reviewing? could we be reviewing? could you be reviewing? could they be reviewing?
Perfect	V-ing perfect
could I have reviewed? could you have reviewed? could he have reviewed? could we have reviewed? could you have reviewed? could they have reviewed?	could I have been reviewing? could you have been reviewing? could he have been reviewing? could we have been reviewing? could you have been reviewing? could they have been reviewing?

Interro-negative form

Simple form	V-ing form
could I not review? could you not review? could he not review? could we not review? could you not review? could they not review?	could I not be reviewing? could you not be reviewing? could he not be reviewing? could we not be reviewing? could you not be reviewing? could they not be reviewing?
Perfect	V-ing perfect
could I not have reviewed? could you not have reviewed? could he not have reviewed? could we not have reviewed? could you not have reviewed? could they not have reviewed?	could I not have been reviewing? could you not have been reviewing? could he not have been reviewing? could we not have been reviewing? could you not have been reviewing? could they not have been reviewing?