English verb conjugation COULD SEINE

Regular verb: seine - seined - seined

Affirmation

Simple form

I could seine
you could seine
he could seine
we could seine
you could seine
they could seine

V-ing form

I could be seining
you could be seining
he could be seining
we could be seining
you could be seining
they could be seining

Perfect

I could have seined
you could have seined
he could have seined
we could have seined
you could have seined
they could have seined

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I seine?
could you seine?
could he seine?
could we seine?
could you seine?
could they seine?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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