I must sketch you must sketch he must sketch we must sketch you must sketch they must sketch
Forma com V-ing
I must be sketching you must be sketching he must be sketching we must be sketching you must be sketching they must be sketching
Perfeito
I must have sketched you must have sketched he must have sketched we must have sketched you must have sketched they must have sketched
Perfeito com V-ing
I must have been sketching you must have been sketching he must have been sketching we must have been sketching you must have been sketching they must have been sketching
Negação
Forma simple
I must not sketch you must not sketch he must not sketch we must not sketch you must not sketch they must not sketch
Forma com V-ing
I must not be sketching you must not be sketching he must not be sketching we must not be sketching you must not be sketching they must not be sketching
Perfeito
I must not have sketched you must not have sketched he must not have sketched we must not have sketched you must not have sketched they must not have sketched
Perfeito com V-ing
I must not have been sketching you must not have been sketching he must not have been sketching we must not have been sketching you must not have been sketching they must not have been sketching
Forma interrogativa
Forma simple
must I sketch? must you sketch? must he sketch? must we sketch? must you sketch? must they sketch?
Forma com V-ing
must I be sketching? must you be sketching? must he be sketching? must we be sketching? must you be sketching? must they be sketching?
Perfeito
must I have sketched? must you have sketched? must he have sketched? must we have sketched? must you have sketched? must they have sketched?
Perfeito com V-ing
must I have been sketching? must you have been sketching? must he have been sketching? must we have been sketching? must you have been sketching? must they have been sketching?
Forma interro-Negação
Forma simple
must I not sketch? must you not sketch? must he not sketch? must we not sketch? must you not sketch? must they not sketch?
Forma com V-ing
must I not be sketching? must you not be sketching? must he not be sketching? must we not be sketching? must you not be sketching? must they not be sketching?
Perfeito
must I not have sketched? must you not have sketched? must he not have sketched? must we not have sketched? must you not have sketched? must they not have sketched?
Perfeito com V-ing
must I not have been sketching? must you not have been sketching? must he not have been sketching? must we not have been sketching? must you not have been sketching? must they not have been sketching?