English verb conjugation
MUST FRIGHTEN FRIGHTEN

Regular verb: frighten frighten - frighten frightened - frighten frightened

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must frighten frighten you must frighten frighten she must frighten frighten we must frighten frighten you must frighten frighten they must frighten frighten	I must be frighten frightening you must be frighten frightening she must be frighten frightening we must be frighten frightening you must be frighten frightening they must be frighten frightening
Perfect	V-ing perfect
I must have frighten frightened you must have frighten frightened she must have frighten frightened we must have frighten frightened you must have frighten frightened they must have frighten frightened	I must have been frighten frightening you must have been frighten frightening she must have been frighten frightening we must have been frighten frightening you must have been frighten frightening they must have been frighten frightening

Negation

Simple form	V-ing form
I must not frighten frighten you must not frighten frighten she must not frighten frighten we must not frighten frighten you must not frighten frighten they must not frighten frighten	I must not be frighten frightening you must not be frighten frightening she must not be frighten frightening we must not be frighten frightening you must not be frighten frightening they must not be frighten frightening
Perfect	V-ing perfect
I must not have frighten frightened you must not have frighten frightened she must not have frighten frightened we must not have frighten frightened you must not have frighten frightened they must not have frighten frightened	I must not have been frighten frightening you must not have been frighten frightening she must not have been frighten frightening we must not have been frighten frightening you must not have been frighten frightening they must not have been frighten frightening

Interrogative form

Simple form	V-ing form
must I frighten frighten? must you frighten frighten? must she frighten frighten? must we frighten frighten? must you frighten frighten? must they frighten frighten?	must I be frighten frightening? must you be frighten frightening? must she be frighten frightening? must we be frighten frightening? must you be frighten frightening? must they be frighten frightening?
Perfect	V-ing perfect
must I have frighten frightened? must you have frighten frightened? must she have frighten frightened? must we have frighten frightened? must you have frighten frightened? must they have frighten frightened?	must I have been frighten frightening? must you have been frighten frightening? must she have been frighten frightening? must we have been frighten frightening? must you have been frighten frightening? must they have been frighten frightening?

Interro-negative form

Simple form	V-ing form
must I not frighten frighten? must you not frighten frighten? must she not frighten frighten? must we not frighten frighten? must you not frighten frighten? must they not frighten frighten?	must I not be frighten frightening? must you not be frighten frightening? must she not be frighten frightening? must we not be frighten frightening? must you not be frighten frightening? must they not be frighten frightening?
Perfect	V-ing perfect
must I not have frighten frightened? must you not have frighten frightened? must she not have frighten frightened? must we not have frighten frightened? must you not have frighten frightened? must they not have frighten frightened?	must I not have been frighten frightening? must you not have been frighten frightening? must she not have been frighten frightening? must we not have been frighten frightening? must you not have been frighten frightening? must they not have been frighten frightening?