I must go you must go she must go we must go you must go they must go
Forma com V-ing
I must be going you must be going she must be going we must be going you must be going they must be going
Perfeito
I must have gone you must have gone she must have gone we must have gone you must have gone they must have gone
Perfeito com V-ing
I must have been going you must have been going she must have been going we must have been going you must have been going they must have been going
Negação
Forma simple
I must not go you must not go she must not go we must not go you must not go they must not go
Forma com V-ing
I must not be going you must not be going she must not be going we must not be going you must not be going they must not be going
Perfeito
I must not have gone you must not have gone she must not have gone we must not have gone you must not have gone they must not have gone
Perfeito com V-ing
I must not have been going you must not have been going she must not have been going we must not have been going you must not have been going they must not have been going
Forma interrogativa
Forma simple
must I go? must you go? must she go? must we go? must you go? must they go?
Forma com V-ing
must I be going? must you be going? must she be going? must we be going? must you be going? must they be going?
Perfeito
must I have gone? must you have gone? must she have gone? must we have gone? must you have gone? must they have gone?
Perfeito com V-ing
must I have been going? must you have been going? must she have been going? must we have been going? must you have been going? must they have been going?
Forma interro-Negação
Forma simple
must I not go? must you not go? must she not go? must we not go? must you not go? must they not go?
Forma com V-ing
must I not be going? must you not be going? must she not be going? must we not be going? must you not be going? must they not be going?
Perfeito
must I not have gone? must you not have gone? must she not have gone? must we not have gone? must you not have gone? must they not have gone?
Perfeito com V-ing
must I not have been going? must you not have been going? must she not have been going? must we not have been going? must you not have been going? must they not have been going?