I must stamp you must stamp she must stamp we must stamp you must stamp they must stamp
Forma com V-ing
I must be stamping you must be stamping she must be stamping we must be stamping you must be stamping they must be stamping
Perfeito
I must have stamped you must have stamped she must have stamped we must have stamped you must have stamped they must have stamped
Perfeito com V-ing
I must have been stamping you must have been stamping she must have been stamping we must have been stamping you must have been stamping they must have been stamping
Negação
Forma simple
I must not stamp you must not stamp she must not stamp we must not stamp you must not stamp they must not stamp
Forma com V-ing
I must not be stamping you must not be stamping she must not be stamping we must not be stamping you must not be stamping they must not be stamping
Perfeito
I must not have stamped you must not have stamped she must not have stamped we must not have stamped you must not have stamped they must not have stamped
Perfeito com V-ing
I must not have been stamping you must not have been stamping she must not have been stamping we must not have been stamping you must not have been stamping they must not have been stamping
Forma interrogativa
Forma simple
must I stamp? must you stamp? must she stamp? must we stamp? must you stamp? must they stamp?
Forma com V-ing
must I be stamping? must you be stamping? must she be stamping? must we be stamping? must you be stamping? must they be stamping?
Perfeito
must I have stamped? must you have stamped? must she have stamped? must we have stamped? must you have stamped? must they have stamped?
Perfeito com V-ing
must I have been stamping? must you have been stamping? must she have been stamping? must we have been stamping? must you have been stamping? must they have been stamping?
Forma interro-Negação
Forma simple
must I not stamp? must you not stamp? must she not stamp? must we not stamp? must you not stamp? must they not stamp?
Forma com V-ing
must I not be stamping? must you not be stamping? must she not be stamping? must we not be stamping? must you not be stamping? must they not be stamping?
Perfeito
must I not have stamped? must you not have stamped? must she not have stamped? must we not have stamped? must you not have stamped? must they not have stamped?
Perfeito com V-ing
must I not have been stamping? must you not have been stamping? must she not have been stamping? must we not have been stamping? must you not have been stamping? must they not have been stamping?