English verb conjugation COULD PREFIX

Regular verb: prefix - prefixed - prefixed

Affirmation

Simple form

I could prefix
you could prefix
he could prefix
we could prefix
you could prefix
they could prefix

V-ing form

I could be prefixing
you could be prefixing
he could be prefixing
we could be prefixing
you could be prefixing
they could be prefixing

Perfect

I could have prefixed
you could have prefixed
he could have prefixed
we could have prefixed
you could have prefixed
they could have prefixed

V-ing perfect

I could have been prefixing
you could have been prefixing
he could have been prefixing
we could have been prefixing
you could have been prefixing
they could have been prefixing

Negation

Simple form

I couldn't prefix
you couldn't prefix
he couldn't prefix
we couldn't prefix
you couldn't prefix
they couldn't prefix

V-ing form

I couldn't be prefixing
you couldn't be prefixing
he couldn't be prefixing
we couldn't be prefixing
you couldn't be prefixing
they couldn't be prefixing

Perfect

I couldn't have prefixed
you couldn't have prefixed
he couldn't have prefixed
we couldn't have prefixed
you couldn't have prefixed
they couldn't have prefixed

V-ing perfect

I couldn't have been prefixing
you couldn't have been prefixing
he couldn't have been prefixing
we couldn't have been prefixing
you couldn't have been prefixing
they couldn't have been prefixing

Interrogative form

Simple form

could I prefix?
could you prefix?
could he prefix?
could we prefix?
could you prefix?
could they prefix?

V-ing form

could I be prefixing?
could you be prefixing?
could he be prefixing?
could we be prefixing?
could you be prefixing?
could they be prefixing?

Perfect

could I have prefixed?
could you have prefixed?
could he have prefixed?
could we have prefixed?
could you have prefixed?
could they have prefixed?

V-ing perfect

could I have been prefixing?
could you have been prefixing?
could he have been prefixing?
could we have been prefixing?
could you have been prefixing?
could they have been prefixing?

Interro-negative form

Simple form

couldn't I prefix?
couldn't you prefix?
couldn't he prefix?
couldn't we prefix?
couldn't you prefix?
couldn't they prefix?

V-ing form

couldn't I be prefixing?
couldn't you be prefixing?
couldn't he be prefixing?
couldn't we be prefixing?
couldn't you be prefixing?
couldn't they be prefixing?

Perfect

couldn't I have prefixed?
couldn't you have prefixed?
couldn't he have prefixed?
couldn't we have prefixed?
couldn't you have prefixed?
couldn't they have prefixed?

V-ing perfect

couldn't I have been prefixing?
couldn't you have been prefixing?
couldn't he have been prefixing?
couldn't we have been prefixing?
couldn't you have been prefixing?
couldn't they have been prefixing?

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