English verb conjugation COULD STAY

Regular verb: stay - stayed - stayed

Affirmation

Simple form

I could stay
you could stay
he could stay
we could stay
you could stay
they could stay

V-ing form

I could be staying
you could be staying
he could be staying
we could be staying
you could be staying
they could be staying

Perfect

I could have stayed
you could have stayed
he could have stayed
we could have stayed
you could have stayed
they could have stayed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I stay?
could you stay?
could he stay?
could we stay?
could you stay?
could they stay?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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