Conjugaison du verbe anglais
MUST UNDERGIRD

Verbe irrégulier : undergird - undergirt, undergirded - undergirt, undergirded

Affirmation

Forme simple	Forme en V-ing
I must undergird you must undergird she must undergird we must undergird you must undergird they must undergird	I must be undergirding you must be undergirding she must be undergirding we must be undergirding you must be undergirding they must be undergirding
Perfect	Perfect en V-ing
I must have undergirt, undergirded you must have undergirt, undergirded she must have undergirt, undergirded we must have undergirt, undergirded you must have undergirt, undergirded they must have undergirt, undergirded	I must have been undergirding you must have been undergirding she must have been undergirding we must have been undergirding you must have been undergirding they must have been undergirding

Négation

Forme simple	Forme en V-ing
I must not undergird you must not undergird she must not undergird we must not undergird you must not undergird they must not undergird	I must not be undergirding you must not be undergirding she must not be undergirding we must not be undergirding you must not be undergirding they must not be undergirding
Perfect	Perfect en V-ing
I must not have undergirt, undergirded you must not have undergirt, undergirded she must not have undergirt, undergirded we must not have undergirt, undergirded you must not have undergirt, undergirded they must not have undergirt, undergirded	I must not have been undergirding you must not have been undergirding she must not have been undergirding we must not have been undergirding you must not have been undergirding they must not have been undergirding

Forme interrogative

Forme simple	Forme en V-ing
must I undergird? must you undergird? must she undergird? must we undergird? must you undergird? must they undergird?	must I be undergirding? must you be undergirding? must she be undergirding? must we be undergirding? must you be undergirding? must they be undergirding?
Perfect	Perfect en V-ing
must I have undergirt, undergirded? must you have undergirt, undergirded? must she have undergirt, undergirded? must we have undergirt, undergirded? must you have undergirt, undergirded? must they have undergirt, undergirded?	must I have been undergirding? must you have been undergirding? must she have been undergirding? must we have been undergirding? must you have been undergirding? must they have been undergirding?

Forme interro-négative

Forme simple	Forme en V-ing
must I not undergird? must you not undergird? must she not undergird? must we not undergird? must you not undergird? must they not undergird?	must I not be undergirding? must you not be undergirding? must she not be undergirding? must we not be undergirding? must you not be undergirding? must they not be undergirding?
Perfect	Perfect en V-ing
must I not have undergirt, undergirded? must you not have undergirt, undergirded? must she not have undergirt, undergirded? must we not have undergirt, undergirded? must you not have undergirt, undergirded? must they not have undergirt, undergirded?	must I not have been undergirding? must you not have been undergirding? must she not have been undergirding? must we not have been undergirding? must you not have been undergirding? must they not have been undergirding?