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 couldn't sigh
you couldn't sigh
he couldn't sigh
we couldn't sigh
you couldn't sigh
they couldn't sigh

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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