I could exasperate you could exasperate he could exasperate we could exasperate you could exasperate they could exasperate
V-ing form
I could be exasperating you could be exasperating he could be exasperating we could be exasperating you could be exasperating they could be exasperating
Perfect
I could have exasperated you could have exasperated he could have exasperated we could have exasperated you could have exasperated they could have exasperated
V-ing perfect
I could have been exasperating you could have been exasperating he could have been exasperating we could have been exasperating you could have been exasperating they could have been exasperating
Negation
Simple form
I couldn't exasperate you couldn't exasperate he couldn't exasperate we couldn't exasperate you couldn't exasperate they couldn't exasperate
V-ing form
I couldn't be exasperating you couldn't be exasperating he couldn't be exasperating we couldn't be exasperating you couldn't be exasperating they couldn't be exasperating
Perfect
I couldn't have exasperated you couldn't have exasperated he couldn't have exasperated we couldn't have exasperated you couldn't have exasperated they couldn't have exasperated
V-ing perfect
I couldn't have been exasperating you couldn't have been exasperating he couldn't have been exasperating we couldn't have been exasperating you couldn't have been exasperating they couldn't have been exasperating
Interrogative form
Simple form
could I exasperate? could you exasperate? could he exasperate? could we exasperate? could you exasperate? could they exasperate?
V-ing form
could I be exasperating? could you be exasperating? could he be exasperating? could we be exasperating? could you be exasperating? could they be exasperating?
Perfect
could I have exasperated? could you have exasperated? could he have exasperated? could we have exasperated? could you have exasperated? could they have exasperated?
V-ing perfect
could I have been exasperating? could you have been exasperating? could he have been exasperating? could we have been exasperating? could you have been exasperating? could they have been exasperating?
Interro-negative form
Simple form
couldn't I exasperate? couldn't you exasperate? couldn't he exasperate? couldn't we exasperate? couldn't you exasperate? couldn't they exasperate?
V-ing form
couldn't I be exasperating? couldn't you be exasperating? couldn't he be exasperating? couldn't we be exasperating? couldn't you be exasperating? couldn't they be exasperating?
Perfect
couldn't I have exasperated? couldn't you have exasperated? couldn't he have exasperated? couldn't we have exasperated? couldn't you have exasperated? couldn't they have exasperated?
V-ing perfect
couldn't I have been exasperating? couldn't you have been exasperating? couldn't he have been exasperating? couldn't we have been exasperating? couldn't you have been exasperating? couldn't they have been exasperating?