I must skew you must skew he must skew we must skew you must skew they must skew
Forme en V-ing
I must be skewing you must be skewing he must be skewing we must be skewing you must be skewing they must be skewing
Perfect
I must have skewed you must have skewed he must have skewed we must have skewed you must have skewed they must have skewed
Perfect en V-ing
I must have been skewing you must have been skewing he must have been skewing we must have been skewing you must have been skewing they must have been skewing
Négation
Forme simple
I must not skew you must not skew he must not skew we must not skew you must not skew they must not skew
Forme en V-ing
I must not be skewing you must not be skewing he must not be skewing we must not be skewing you must not be skewing they must not be skewing
Perfect
I must not have skewed you must not have skewed he must not have skewed we must not have skewed you must not have skewed they must not have skewed
Perfect en V-ing
I must not have been skewing you must not have been skewing he must not have been skewing we must not have been skewing you must not have been skewing they must not have been skewing
Forme interrogative
Forme simple
must I skew? must you skew? must he skew? must we skew? must you skew? must they skew?
Forme en V-ing
must I be skewing? must you be skewing? must he be skewing? must we be skewing? must you be skewing? must they be skewing?
Perfect
must I have skewed? must you have skewed? must he have skewed? must we have skewed? must you have skewed? must they have skewed?
Perfect en V-ing
must I have been skewing? must you have been skewing? must he have been skewing? must we have been skewing? must you have been skewing? must they have been skewing?
Forme interro-négative
Forme simple
must I not skew? must you not skew? must he not skew? must we not skew? must you not skew? must they not skew?
Forme en V-ing
must I not be skewing? must you not be skewing? must he not be skewing? must we not be skewing? must you not be skewing? must they not be skewing?
Perfect
must I not have skewed? must you not have skewed? must he not have skewed? must we not have skewed? must you not have skewed? must they not have skewed?
Perfect en V-ing
must I not have been skewing? must you not have been skewing? must he not have been skewing? must we not have been skewing? must you not have been skewing? must they not have been skewing?