English verb conjugation
COULD FIRE

Regular verb: fire - fired - fired

Affirmation

Simple form	V-ing form
I could fire you could fire she could fire we could fire you could fire they could fire	I could be firing you could be firing she could be firing we could be firing you could be firing they could be firing
Perfect	V-ing perfect
I could have fired you could have fired she could have fired we could have fired you could have fired they could have fired	I could have been firing you could have been firing she could have been firing we could have been firing you could have been firing they could have been firing

Negation

Simple form	V-ing form
I couldn't fire you couldn't fire she couldn't fire we couldn't fire you couldn't fire they couldn't fire	I couldn't be firing you couldn't be firing she couldn't be firing we couldn't be firing you couldn't be firing they couldn't be firing
Perfect	V-ing perfect
I couldn't have fired you couldn't have fired she couldn't have fired we couldn't have fired you couldn't have fired they couldn't have fired	I couldn't have been firing you couldn't have been firing she couldn't have been firing we couldn't have been firing you couldn't have been firing they couldn't have been firing

Interrogative form

Simple form	V-ing form
could I fire? could you fire? could she fire? could we fire? could you fire? could they fire?	could I be firing? could you be firing? could she be firing? could we be firing? could you be firing? could they be firing?
Perfect	V-ing perfect
could I have fired? could you have fired? could she have fired? could we have fired? could you have fired? could they have fired?	could I have been firing? could you have been firing? could she have been firing? could we have been firing? could you have been firing? could they have been firing?

Interro-negative form

Simple form	V-ing form
couldn't I fire? couldn't you fire? couldn't she fire? couldn't we fire? couldn't you fire? couldn't they fire?	couldn't I be firing? couldn't you be firing? couldn't she be firing? couldn't we be firing? couldn't you be firing? couldn't they be firing?
Perfect	V-ing perfect
couldn't I have fired? couldn't you have fired? couldn't she have fired? couldn't we have fired? couldn't you have fired? couldn't they have fired?	couldn't I have been firing? couldn't you have been firing? couldn't she have been firing? couldn't we have been firing? couldn't you have been firing? couldn't they have been firing?