English verb conjugation COULD FORM

Regular verb: form - formed - formed

Affirmation

Simple form

I could form
you could form
he could form
we could form
you could form
they could form

V-ing form

I could be forming
you could be forming
he could be forming
we could be forming
you could be forming
they could be forming

Perfect

I could have formed
you could have formed
he could have formed
we could have formed
you could have formed
they could have formed

V-ing perfect

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

Negation

Simple form

I could not form
you could not form
he could not form
we could not form
you could not form
they could not form

V-ing form

I could not be forming
you could not be forming
he could not be forming
we could not be forming
you could not be forming
they could not be forming

Perfect

I could not have formed
you could not have formed
he could not have formed
we could not have formed
you could not have formed
they could not have formed

V-ing perfect

I could not have been forming
you could not have been forming
he could not have been forming
we could not have been forming
you could not have been forming
they could not have been forming

Interrogative form

Simple form

could I form?
could you form?
could he form?
could we form?
could you form?
could they form?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not form?
could you not form?
could he not form?
could we not form?
could you not form?
could they not form?

V-ing form

could I not be forming?
could you not be forming?
could he not be forming?
could we not be forming?
could you not be forming?
could they not be forming?

Perfect

could I not have formed?
could you not have formed?
could he not have formed?
could we not have formed?
could you not have formed?
could they not have formed?

V-ing perfect

could I not have been forming?
could you not have been forming?
could he not have been forming?
could we not have been forming?
could you not have been forming?
could they not have been forming?

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