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 couldn't frighten
you couldn't frighten
she couldn't frighten
we couldn't frighten
you couldn't frighten
they couldn't frighten

V-ing form

I couldn't be frightening
you couldn't be frightening
she couldn't be frightening
we couldn't be frightening
you couldn't be frightening
they couldn't be frightening

Perfect

I couldn't have frightened
you couldn't have frightened
she couldn't have frightened
we couldn't have frightened
you couldn't have frightened
they couldn't have frightened

V-ing perfect

I couldn't have been frightening
you couldn't have been frightening
she couldn't have been frightening
we couldn't have been frightening
you couldn't have been frightening
they couldn't 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

couldn't I frighten?
couldn't you frighten?
couldn't she frighten?
couldn't we frighten?
couldn't you frighten?
couldn't they frighten?

V-ing form

couldn't I be frightening?
couldn't you be frightening?
couldn't she be frightening?
couldn't we be frightening?
couldn't you be frightening?
couldn't they be frightening?

Perfect

couldn't I have frightened?
couldn't you have frightened?
couldn't she have frightened?
couldn't we have frightened?
couldn't you have frightened?
couldn't they have frightened?

V-ing perfect

couldn't I have been frightening?
couldn't you have been frightening?
couldn't she have been frightening?
couldn't we have been frightening?
couldn't you have been frightening?
couldn't they have been frightening?

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