Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I must frighten frighten you must frighten frighten she must frighten frighten we must frighten frighten you must frighten frighten they must frighten frighten
Forme en V-ing
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
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
Perfect en V-ing
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
Négation
Forme simple
I mustn't frighten frighten you mustn't frighten frighten she mustn't frighten frighten we mustn't frighten frighten you mustn't frighten frighten they mustn't frighten frighten
Forme en V-ing
I mustn't be frighten frightening you mustn't be frighten frightening she mustn't be frighten frightening we mustn't be frighten frightening you mustn't be frighten frightening they mustn't be frighten frightening
Perfect
I mustn't have frighten frightened you mustn't have frighten frightened she mustn't have frighten frightened we mustn't have frighten frightened you mustn't have frighten frightened they mustn't have frighten frightened
Perfect en V-ing
I mustn't have been frighten frightening you mustn't have been frighten frightening she mustn't have been frighten frightening we mustn't have been frighten frightening you mustn't have been frighten frightening they mustn't have been frighten frightening
Forme interrogative
Forme simple
must I frighten frighten? must you frighten frighten? must she frighten frighten? must we frighten frighten? must you frighten frighten? must they frighten frighten?
Forme en V-ing
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
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?
Perfect en V-ing
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?
Forme interro-négative
Forme simple
mustn't I frighten frighten? mustn't you frighten frighten? mustn't she frighten frighten? mustn't we frighten frighten? mustn't you frighten frighten? mustn't they frighten frighten?
Forme en V-ing
mustn't I be frighten frightening? mustn't you be frighten frightening? mustn't she be frighten frightening? mustn't we be frighten frightening? mustn't you be frighten frightening? mustn't they be frighten frightening?
Perfect
mustn't I have frighten frightened? mustn't you have frighten frightened? mustn't she have frighten frightened? mustn't we have frighten frightened? mustn't you have frighten frightened? mustn't they have frighten frightened?
Perfect en V-ing
mustn't I have been frighten frightening? mustn't you have been frighten frightening? mustn't she have been frighten frightening? mustn't we have been frighten frightening? mustn't you have been frighten frightening? mustn't they have been frighten frightening?