I must perform you must perform he must perform we must perform you must perform they must perform
Forma com V-ing
I must be performing you must be performing he must be performing we must be performing you must be performing they must be performing
Perfeito
I must have performed you must have performed he must have performed we must have performed you must have performed they must have performed
Perfeito com V-ing
I must have been performing you must have been performing he must have been performing we must have been performing you must have been performing they must have been performing
Negação
Forma simple
I must not perform you must not perform he must not perform we must not perform you must not perform they must not perform
Forma com V-ing
I must not be performing you must not be performing he must not be performing we must not be performing you must not be performing they must not be performing
Perfeito
I must not have performed you must not have performed he must not have performed we must not have performed you must not have performed they must not have performed
Perfeito com V-ing
I must not have been performing you must not have been performing he must not have been performing we must not have been performing you must not have been performing they must not have been performing
Forma interrogativa
Forma simple
must I perform? must you perform? must he perform? must we perform? must you perform? must they perform?
Forma com V-ing
must I be performing? must you be performing? must he be performing? must we be performing? must you be performing? must they be performing?
Perfeito
must I have performed? must you have performed? must he have performed? must we have performed? must you have performed? must they have performed?
Perfeito com V-ing
must I have been performing? must you have been performing? must he have been performing? must we have been performing? must you have been performing? must they have been performing?
Forma interro-Negação
Forma simple
must I not perform? must you not perform? must he not perform? must we not perform? must you not perform? must they not perform?
Forma com V-ing
must I not be performing? must you not be performing? must he not be performing? must we not be performing? must you not be performing? must they not be performing?
Perfeito
must I not have performed? must you not have performed? must he not have performed? must we not have performed? must you not have performed? must they not have performed?
Perfeito com V-ing
must I not have been performing? must you not have been performing? must he not have been performing? must we not have been performing? must you not have been performing? must they not have been performing?