English verb conjugation COULD ERUPT

Regular verb: erupt - erupted - erupted

Affirmation

Simple form

I could erupt
you could erupt
he could erupt
we could erupt
you could erupt
they could erupt

V-ing form

I could be erupting
you could be erupting
he could be erupting
we could be erupting
you could be erupting
they could be erupting

Perfect

I could have erupted
you could have erupted
he could have erupted
we could have erupted
you could have erupted
they could have erupted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I erupt?
could you erupt?
could he erupt?
could we erupt?
could you erupt?
could they erupt?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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