English verb conjugation COULD KILL

Regular verb: kill - killed - killed

Affirmation

Simple form

I could kill
you could kill
she could kill
we could kill
you could kill
they could kill

V-ing form

I could be killing
you could be killing
she could be killing
we could be killing
you could be killing
they could be killing

Perfect

I could have killed
you could have killed
she could have killed
we could have killed
you could have killed
they could have killed

V-ing perfect

I could have been killing
you could have been killing
she could have been killing
we could have been killing
you could have been killing
they could have been killing

Negation

Simple form

I couldn't kill
you couldn't kill
she couldn't kill
we couldn't kill
you couldn't kill
they couldn't kill

V-ing form

I couldn't be killing
you couldn't be killing
she couldn't be killing
we couldn't be killing
you couldn't be killing
they couldn't be killing

Perfect

I couldn't have killed
you couldn't have killed
she couldn't have killed
we couldn't have killed
you couldn't have killed
they couldn't have killed

V-ing perfect

I couldn't have been killing
you couldn't have been killing
she couldn't have been killing
we couldn't have been killing
you couldn't have been killing
they couldn't have been killing

Interrogative form

Simple form

could I kill?
could you kill?
could she kill?
could we kill?
could you kill?
could they kill?

V-ing form

could I be killing?
could you be killing?
could she be killing?
could we be killing?
could you be killing?
could they be killing?

Perfect

could I have killed?
could you have killed?
could she have killed?
could we have killed?
could you have killed?
could they have killed?

V-ing perfect

could I have been killing?
could you have been killing?
could she have been killing?
could we have been killing?
could you have been killing?
could they have been killing?

Interro-negative form

Simple form

couldn't I kill?
couldn't you kill?
couldn't she kill?
couldn't we kill?
couldn't you kill?
couldn't they kill?

V-ing form

couldn't I be killing?
couldn't you be killing?
couldn't she be killing?
couldn't we be killing?
couldn't you be killing?
couldn't they be killing?

Perfect

couldn't I have killed?
couldn't you have killed?
couldn't she have killed?
couldn't we have killed?
couldn't you have killed?
couldn't they have killed?

V-ing perfect

couldn't I have been killing?
couldn't you have been killing?
couldn't she have been killing?
couldn't we have been killing?
couldn't you have been killing?
couldn't they have been killing?

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