English verb conjugation COULD SIGH

Regular verb: sigh - sighed - sighed

Affirmation

Simple form

I could sigh
you could sigh
he could sigh
we could sigh
you could sigh
they could sigh

V-ing form

I could be sighing
you could be sighing
he could be sighing
we could be sighing
you could be sighing
they could be sighing

Perfect

I could have sighed
you could have sighed
he could have sighed
we could have sighed
you could have sighed
they could have sighed

V-ing perfect

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

Negation

Simple form

I could not sigh
you could not sigh
he could not sigh
we could not sigh
you could not sigh
they could not sigh

V-ing form

I could not be sighing
you could not be sighing
he could not be sighing
we could not be sighing
you could not be sighing
they could not be sighing

Perfect

I could not have sighed
you could not have sighed
he could not have sighed
we could not have sighed
you could not have sighed
they could not have sighed

V-ing perfect

I could not have been sighing
you could not have been sighing
he could not have been sighing
we could not have been sighing
you could not have been sighing
they could not have been sighing

Interrogative form

Simple form

could I sigh?
could you sigh?
could he sigh?
could we sigh?
could you sigh?
could they sigh?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not sigh?
could you not sigh?
could he not sigh?
could we not sigh?
could you not sigh?
could they not sigh?

V-ing form

could I not be sighing?
could you not be sighing?
could he not be sighing?
could we not be sighing?
could you not be sighing?
could they not be sighing?

Perfect

could I not have sighed?
could you not have sighed?
could he not have sighed?
could we not have sighed?
could you not have sighed?
could they not have sighed?

V-ing perfect

could I not have been sighing?
could you not have been sighing?
could he not have been sighing?
could we not have been sighing?
could you not have been sighing?
could they not have been sighing?

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