I could unmake you could unmake he could unmake we could unmake you could unmake they could unmake
V-ing form
I could be unmaking you could be unmaking he could be unmaking we could be unmaking you could be unmaking they could be unmaking
Perfect
I could have unmade you could have unmade he could have unmade we could have unmade you could have unmade they could have unmade
V-ing perfect
I could have been unmaking you could have been unmaking he could have been unmaking we could have been unmaking you could have been unmaking they could have been unmaking
Negation
Simple form
I could not unmake you could not unmake he could not unmake we could not unmake you could not unmake they could not unmake
V-ing form
I could not be unmaking you could not be unmaking he could not be unmaking we could not be unmaking you could not be unmaking they could not be unmaking
Perfect
I could not have unmade you could not have unmade he could not have unmade we could not have unmade you could not have unmade they could not have unmade
V-ing perfect
I could not have been unmaking you could not have been unmaking he could not have been unmaking we could not have been unmaking you could not have been unmaking they could not have been unmaking
Interrogative form
Simple form
could I unmake? could you unmake? could he unmake? could we unmake? could you unmake? could they unmake?
V-ing form
could I be unmaking? could you be unmaking? could he be unmaking? could we be unmaking? could you be unmaking? could they be unmaking?
Perfect
could I have unmade? could you have unmade? could he have unmade? could we have unmade? could you have unmade? could they have unmade?
V-ing perfect
could I have been unmaking? could you have been unmaking? could he have been unmaking? could we have been unmaking? could you have been unmaking? could they have been unmaking?
Interro-negative form
Simple form
could I not unmake? could you not unmake? could he not unmake? could we not unmake? could you not unmake? could they not unmake?
V-ing form
could I not be unmaking? could you not be unmaking? could he not be unmaking? could we not be unmaking? could you not be unmaking? could they not be unmaking?
Perfect
could I not have unmade? could you not have unmade? could he not have unmade? could we not have unmade? could you not have unmade? could they not have unmade?
V-ing perfect
could I not have been unmaking? could you not have been unmaking? could he not have been unmaking? could we not have been unmaking? could you not have been unmaking? could they not have been unmaking?