I could reiterate you could reiterate he could reiterate we could reiterate you could reiterate they could reiterate
V-ing form
I could be reiterating you could be reiterating he could be reiterating we could be reiterating you could be reiterating they could be reiterating
Perfect
I could have reiterated you could have reiterated he could have reiterated we could have reiterated you could have reiterated they could have reiterated
V-ing perfect
I could have been reiterating you could have been reiterating he could have been reiterating we could have been reiterating you could have been reiterating they could have been reiterating
Negation
Simple form
I could not reiterate you could not reiterate he could not reiterate we could not reiterate you could not reiterate they could not reiterate
V-ing form
I could not be reiterating you could not be reiterating he could not be reiterating we could not be reiterating you could not be reiterating they could not be reiterating
Perfect
I could not have reiterated you could not have reiterated he could not have reiterated we could not have reiterated you could not have reiterated they could not have reiterated
V-ing perfect
I could not have been reiterating you could not have been reiterating he could not have been reiterating we could not have been reiterating you could not have been reiterating they could not have been reiterating
Interrogative form
Simple form
could I reiterate? could you reiterate? could he reiterate? could we reiterate? could you reiterate? could they reiterate?
V-ing form
could I be reiterating? could you be reiterating? could he be reiterating? could we be reiterating? could you be reiterating? could they be reiterating?
Perfect
could I have reiterated? could you have reiterated? could he have reiterated? could we have reiterated? could you have reiterated? could they have reiterated?
V-ing perfect
could I have been reiterating? could you have been reiterating? could he have been reiterating? could we have been reiterating? could you have been reiterating? could they have been reiterating?
Interro-negative form
Simple form
could I not reiterate? could you not reiterate? could he not reiterate? could we not reiterate? could you not reiterate? could they not reiterate?
V-ing form
could I not be reiterating? could you not be reiterating? could he not be reiterating? could we not be reiterating? could you not be reiterating? could they not be reiterating?
Perfect
could I not have reiterated? could you not have reiterated? could he not have reiterated? could we not have reiterated? could you not have reiterated? could they not have reiterated?
V-ing perfect
could I not have been reiterating? could you not have been reiterating? could he not have been reiterating? could we not have been reiterating? could you not have been reiterating? could they not have been reiterating?