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