I must vent you must vent he must vent we must vent you must vent they must vent
Forma com V-ing
I must be venting you must be venting he must be venting we must be venting you must be venting they must be venting
Perfeito
I must have vented you must have vented he must have vented we must have vented you must have vented they must have vented
Perfeito com V-ing
I must have been venting you must have been venting he must have been venting we must have been venting you must have been venting they must have been venting
Negação
Forma simple
I must not vent you must not vent he must not vent we must not vent you must not vent they must not vent
Forma com V-ing
I must not be venting you must not be venting he must not be venting we must not be venting you must not be venting they must not be venting
Perfeito
I must not have vented you must not have vented he must not have vented we must not have vented you must not have vented they must not have vented
Perfeito com V-ing
I must not have been venting you must not have been venting he must not have been venting we must not have been venting you must not have been venting they must not have been venting
Forma interrogativa
Forma simple
must I vent? must you vent? must he vent? must we vent? must you vent? must they vent?
Forma com V-ing
must I be venting? must you be venting? must he be venting? must we be venting? must you be venting? must they be venting?
Perfeito
must I have vented? must you have vented? must he have vented? must we have vented? must you have vented? must they have vented?
Perfeito com V-ing
must I have been venting? must you have been venting? must he have been venting? must we have been venting? must you have been venting? must they have been venting?
Forma interro-Negação
Forma simple
must I not vent? must you not vent? must he not vent? must we not vent? must you not vent? must they not vent?
Forma com V-ing
must I not be venting? must you not be venting? must he not be venting? must we not be venting? must you not be venting? must they not be venting?
Perfeito
must I not have vented? must you not have vented? must he not have vented? must we not have vented? must you not have vented? must they not have vented?
Perfeito com V-ing
must I not have been venting? must you not have been venting? must he not have been venting? must we not have been venting? must you not have been venting? must they not have been venting?