English verb conjugation COULD SUBMERGE

Regular verb: submerge - submerged - submerged

Affirmation

Simple form

I could submerge
you could submerge
he could submerge
we could submerge
you could submerge
they could submerge

V-ing form

I could be submerging
you could be submerging
he could be submerging
we could be submerging
you could be submerging
they could be submerging

Perfect

I could have submerged
you could have submerged
he could have submerged
we could have submerged
you could have submerged
they could have submerged

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I submerge?
could you submerge?
could he submerge?
could we submerge?
could you submerge?
could they submerge?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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