English verb conjugation COULD UNSEAL

Regular verb: unseal - unsealed - unsealed

Affirmation

Simple form

I could unseal
you could unseal
he could unseal
we could unseal
you could unseal
they could unseal

V-ing form

I could be unsealing
you could be unsealing
he could be unsealing
we could be unsealing
you could be unsealing
they could be unsealing

Perfect

I could have unsealed
you could have unsealed
he 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
he 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
he 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
he 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
he 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
he 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 he unseal?
could we unseal?
could you unseal?
could they unseal?

V-ing form

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

Perfect

could I have unsealed?
could you have unsealed?
could he 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 he 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 he 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 he 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 he 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 he 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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