English verb conjugation COULD HARPOON

Regular verb: harpoon - harpooned - harpooned

Affirmation

Simple form

I could harpoon
you could harpoon
he could harpoon
we could harpoon
you could harpoon
they could harpoon

V-ing form

I could be harpooning
you could be harpooning
he could be harpooning
we could be harpooning
you could be harpooning
they could be harpooning

Perfect

I could have harpooned
you could have harpooned
he could have harpooned
we could have harpooned
you could have harpooned
they could have harpooned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I harpoon?
could you harpoon?
could he harpoon?
could we harpoon?
could you harpoon?
could they harpoon?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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