I must sour you must sour she must sour we must sour you must sour they must sour
Forma com V-ing
I must be souring you must be souring she must be souring we must be souring you must be souring they must be souring
Perfeito
I must have soured you must have soured she must have soured we must have soured you must have soured they must have soured
Perfeito com V-ing
I must have been souring you must have been souring she must have been souring we must have been souring you must have been souring they must have been souring
Negação
Forma simple
I must not sour you must not sour she must not sour we must not sour you must not sour they must not sour
Forma com V-ing
I must not be souring you must not be souring she must not be souring we must not be souring you must not be souring they must not be souring
Perfeito
I must not have soured you must not have soured she must not have soured we must not have soured you must not have soured they must not have soured
Perfeito com V-ing
I must not have been souring you must not have been souring she must not have been souring we must not have been souring you must not have been souring they must not have been souring
Forma interrogativa
Forma simple
must I sour? must you sour? must she sour? must we sour? must you sour? must they sour?
Forma com V-ing
must I be souring? must you be souring? must she be souring? must we be souring? must you be souring? must they be souring?
Perfeito
must I have soured? must you have soured? must she have soured? must we have soured? must you have soured? must they have soured?
Perfeito com V-ing
must I have been souring? must you have been souring? must she have been souring? must we have been souring? must you have been souring? must they have been souring?
Forma interro-Negação
Forma simple
must I not sour? must you not sour? must she not sour? must we not sour? must you not sour? must they not sour?
Forma com V-ing
must I not be souring? must you not be souring? must she not be souring? must we not be souring? must you not be souring? must they not be souring?
Perfeito
must I not have soured? must you not have soured? must she not have soured? must we not have soured? must you not have soured? must they not have soured?
Perfeito com V-ing
must I not have been souring? must you not have been souring? must she not have been souring? must we not have been souring? must you not have been souring? must they not have been souring?