I must toe you must toe he must toe we must toe you must toe they must toe
Forma con V-ing
I must be toing you must be toing he must be toing we must be toing you must be toing they must be toing
Perfecto
I must have toed you must have toed he must have toed we must have toed you must have toed they must have toed
Perfecto con V-ing
I must have been toing you must have been toing he must have been toing we must have been toing you must have been toing they must have been toing
Negación
Forma simple
I must not toe you must not toe he must not toe we must not toe you must not toe they must not toe
Forma con V-ing
I must not be toing you must not be toing he must not be toing we must not be toing you must not be toing they must not be toing
Perfecto
I must not have toed you must not have toed he must not have toed we must not have toed you must not have toed they must not have toed
Perfecto con V-ing
I must not have been toing you must not have been toing he must not have been toing we must not have been toing you must not have been toing they must not have been toing
Forma interrogativa
Forma simple
must I toe? must you toe? must he toe? must we toe? must you toe? must they toe?
Forma con V-ing
must I be toing? must you be toing? must he be toing? must we be toing? must you be toing? must they be toing?
Perfecto
must I have toed? must you have toed? must he have toed? must we have toed? must you have toed? must they have toed?
Perfecto con V-ing
must I have been toing? must you have been toing? must he have been toing? must we have been toing? must you have been toing? must they have been toing?
Forma interro-negativa
Forma simple
must I not toe? must you not toe? must he not toe? must we not toe? must you not toe? must they not toe?
Forma con V-ing
must I not be toing? must you not be toing? must he not be toing? must we not be toing? must you not be toing? must they not be toing?
Perfecto
must I not have toed? must you not have toed? must he not have toed? must we not have toed? must you not have toed? must they not have toed?
Perfecto con V-ing
must I not have been toing? must you not have been toing? must he not have been toing? must we not have been toing? must you not have been toing? must they not have been toing?