English verb conjugation COULD FRIGHTEN

Regular verb: frighten - frightened - frightened

Affirmation

Simple form

I could frighten
you could frighten
she could frighten
we could frighten
you could frighten
they could frighten

V-ing form

I could be frightening
you could be frightening
she could be frightening
we could be frightening
you could be frightening
they could be frightening

Perfect

I could have frightened
you could have frightened
she could have frightened
we could have frightened
you could have frightened
they could have frightened

V-ing perfect

I could have been frightening
you could have been frightening
she could have been frightening
we could have been frightening
you could have been frightening
they could have been frightening

Negation

Simple form

I could not frighten
you could not frighten
she could not frighten
we could not frighten
you could not frighten
they could not frighten

V-ing form

I could not be frightening
you could not be frightening
she could not be frightening
we could not be frightening
you could not be frightening
they could not be frightening

Perfect

I could not have frightened
you could not have frightened
she could not have frightened
we could not have frightened
you could not have frightened
they could not have frightened

V-ing perfect

I could not have been frightening
you could not have been frightening
she could not have been frightening
we could not have been frightening
you could not have been frightening
they could not have been frightening

Interrogative form

Simple form

could I frighten?
could you frighten?
could she frighten?
could we frighten?
could you frighten?
could they frighten?

V-ing form

could I be frightening?
could you be frightening?
could she be frightening?
could we be frightening?
could you be frightening?
could they be frightening?

Perfect

could I have frightened?
could you have frightened?
could she have frightened?
could we have frightened?
could you have frightened?
could they have frightened?

V-ing perfect

could I have been frightening?
could you have been frightening?
could she have been frightening?
could we have been frightening?
could you have been frightening?
could they have been frightening?

Interro-negative form

Simple form

could I not frighten?
could you not frighten?
could she not frighten?
could we not frighten?
could you not frighten?
could they not frighten?

V-ing form

could I not be frightening?
could you not be frightening?
could she not be frightening?
could we not be frightening?
could you not be frightening?
could they not be frightening?

Perfect

could I not have frightened?
could you not have frightened?
could she not have frightened?
could we not have frightened?
could you not have frightened?
could they not have frightened?

V-ing perfect

could I not have been frightening?
could you not have been frightening?
could she not have been frightening?
could we not have been frightening?
could you not have been frightening?
could they not have been frightening?

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