English verb conjugation COULD PLANK

Regular verb: plank - planked - planked

Affirmation

Simple form

I could plank
you could plank
he could plank
we could plank
you could plank
they could plank

V-ing form

I could be planking
you could be planking
he could be planking
we could be planking
you could be planking
they could be planking

Perfect

I could have planked
you could have planked
he could have planked
we could have planked
you could have planked
they could have planked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I plank?
could you plank?
could he plank?
could we plank?
could you plank?
could they plank?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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