English verb conjugation COULD OVERNIGHT

Regular verb: overnight - overnighted - overnighted

Affirmation

Simple form

I could overnight
you could overnight
he could overnight
we could overnight
you could overnight
they could overnight

V-ing form

I could be overnighting
you could be overnighting
he could be overnighting
we could be overnighting
you could be overnighting
they could be overnighting

Perfect

I could have overnighted
you could have overnighted
he could have overnighted
we could have overnighted
you could have overnighted
they could have overnighted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I overnight?
could you overnight?
could he overnight?
could we overnight?
could you overnight?
could they overnight?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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