I must play you must play she must play we must play you must play they must play
Forma con V-ing
I must be playing you must be playing she must be playing we must be playing you must be playing they must be playing
Perfecto
I must have played you must have played she must have played we must have played you must have played they must have played
Perfecto con V-ing
I must have been playing you must have been playing she must have been playing we must have been playing you must have been playing they must have been playing
Negación
Forma simple
I must not play you must not play she must not play we must not play you must not play they must not play
Forma con V-ing
I must not be playing you must not be playing she must not be playing we must not be playing you must not be playing they must not be playing
Perfecto
I must not have played you must not have played she must not have played we must not have played you must not have played they must not have played
Perfecto con V-ing
I must not have been playing you must not have been playing she must not have been playing we must not have been playing you must not have been playing they must not have been playing
Forma interrogativa
Forma simple
must I play? must you play? must she play? must we play? must you play? must they play?
Forma con V-ing
must I be playing? must you be playing? must she be playing? must we be playing? must you be playing? must they be playing?
Perfecto
must I have played? must you have played? must she have played? must we have played? must you have played? must they have played?
Perfecto con V-ing
must I have been playing? must you have been playing? must she have been playing? must we have been playing? must you have been playing? must they have been playing?
Forma interro-negativa
Forma simple
must I not play? must you not play? must she not play? must we not play? must you not play? must they not play?
Forma con V-ing
must I not be playing? must you not be playing? must she not be playing? must we not be playing? must you not be playing? must they not be playing?
Perfecto
must I not have played? must you not have played? must she not have played? must we not have played? must you not have played? must they not have played?
Perfecto con V-ing
must I not have been playing? must you not have been playing? must she not have been playing? must we not have been playing? must you not have been playing? must they not have been playing?