I must befoul you must befoul he must befoul we must befoul you must befoul they must befoul
Forma con V-ing
I must be befouling you must be befouling he must be befouling we must be befouling you must be befouling they must be befouling
Perfecto
I must have befouled you must have befouled he must have befouled we must have befouled you must have befouled they must have befouled
Perfecto con V-ing
I must have been befouling you must have been befouling he must have been befouling we must have been befouling you must have been befouling they must have been befouling
Negación
Forma simple
I must not befoul you must not befoul he must not befoul we must not befoul you must not befoul they must not befoul
Forma con V-ing
I must not be befouling you must not be befouling he must not be befouling we must not be befouling you must not be befouling they must not be befouling
Perfecto
I must not have befouled you must not have befouled he must not have befouled we must not have befouled you must not have befouled they must not have befouled
Perfecto con V-ing
I must not have been befouling you must not have been befouling he must not have been befouling we must not have been befouling you must not have been befouling they must not have been befouling
Forma interrogativa
Forma simple
must I befoul? must you befoul? must he befoul? must we befoul? must you befoul? must they befoul?
Forma con V-ing
must I be befouling? must you be befouling? must he be befouling? must we be befouling? must you be befouling? must they be befouling?
Perfecto
must I have befouled? must you have befouled? must he have befouled? must we have befouled? must you have befouled? must they have befouled?
Perfecto con V-ing
must I have been befouling? must you have been befouling? must he have been befouling? must we have been befouling? must you have been befouling? must they have been befouling?
Forma interro-negativa
Forma simple
must I not befoul? must you not befoul? must he not befoul? must we not befoul? must you not befoul? must they not befoul?
Forma con V-ing
must I not be befouling? must you not be befouling? must he not be befouling? must we not be befouling? must you not be befouling? must they not be befouling?
Perfecto
must I not have befouled? must you not have befouled? must he not have befouled? must we not have befouled? must you not have befouled? must they not have befouled?
Perfecto con V-ing
must I not have been befouling? must you not have been befouling? must he not have been befouling? must we not have been befouling? must you not have been befouling? must they not have been befouling?