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