English verb conjugation COULD EXPIRE

Regular verb: expire - expired - expired

Affirmation

Simple form

I could expire
you could expire
she could expire
we could expire
you could expire
they could expire

V-ing form

I could be expiring
you could be expiring
she could be expiring
we could be expiring
you could be expiring
they could be expiring

Perfect

I could have expired
you could have expired
she could have expired
we could have expired
you could have expired
they could have expired

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I expire?
could you expire?
could she expire?
could we expire?
could you expire?
could they expire?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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