English verb conjugation COULD UNSEAL

Regular verb: unseal - unsealed - unsealed

Affirmation

Simple form

I could unseal
you could unseal
she could unseal
we could unseal
you could unseal
they could unseal

V-ing form

I could be unsealing
you could be unsealing
she could be unsealing
we could be unsealing
you could be unsealing
they could be unsealing

Perfect

I could have unsealed
you could have unsealed
she could have unsealed
we could have unsealed
you could have unsealed
they could have unsealed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I unseal?
could you unseal?
could she unseal?
could we unseal?
could you unseal?
could they unseal?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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