I could exonerate you could exonerate he could exonerate we could exonerate you could exonerate they could exonerate
V-ing form
I could be exonerating you could be exonerating he could be exonerating we could be exonerating you could be exonerating they could be exonerating
Perfect
I could have exonerated you could have exonerated he could have exonerated we could have exonerated you could have exonerated they could have exonerated
V-ing perfect
I could have been exonerating you could have been exonerating he could have been exonerating we could have been exonerating you could have been exonerating they could have been exonerating
Negation
Simple form
I could not exonerate you could not exonerate he could not exonerate we could not exonerate you could not exonerate they could not exonerate
V-ing form
I could not be exonerating you could not be exonerating he could not be exonerating we could not be exonerating you could not be exonerating they could not be exonerating
Perfect
I could not have exonerated you could not have exonerated he could not have exonerated we could not have exonerated you could not have exonerated they could not have exonerated
V-ing perfect
I could not have been exonerating you could not have been exonerating he could not have been exonerating we could not have been exonerating you could not have been exonerating they could not have been exonerating
Interrogative form
Simple form
could I exonerate? could you exonerate? could he exonerate? could we exonerate? could you exonerate? could they exonerate?
V-ing form
could I be exonerating? could you be exonerating? could he be exonerating? could we be exonerating? could you be exonerating? could they be exonerating?
Perfect
could I have exonerated? could you have exonerated? could he have exonerated? could we have exonerated? could you have exonerated? could they have exonerated?
V-ing perfect
could I have been exonerating? could you have been exonerating? could he have been exonerating? could we have been exonerating? could you have been exonerating? could they have been exonerating?
Interro-negative form
Simple form
could I not exonerate? could you not exonerate? could he not exonerate? could we not exonerate? could you not exonerate? could they not exonerate?
V-ing form
could I not be exonerating? could you not be exonerating? could he not be exonerating? could we not be exonerating? could you not be exonerating? could they not be exonerating?
Perfect
could I not have exonerated? could you not have exonerated? could he not have exonerated? could we not have exonerated? could you not have exonerated? could they not have exonerated?
V-ing perfect
could I not have been exonerating? could you not have been exonerating? could he not have been exonerating? could we not have been exonerating? could you not have been exonerating? could they not have been exonerating?