I must rivet you must rivet she must rivet we must rivet you must rivet they must rivet
Forma com V-ing
I must be riveting you must be riveting she must be riveting we must be riveting you must be riveting they must be riveting
Perfeito
I must have riveted you must have riveted she must have riveted we must have riveted you must have riveted they must have riveted
Perfeito com V-ing
I must have been riveting you must have been riveting she must have been riveting we must have been riveting you must have been riveting they must have been riveting
Negação
Forma simple
I must not rivet you must not rivet she must not rivet we must not rivet you must not rivet they must not rivet
Forma com V-ing
I must not be riveting you must not be riveting she must not be riveting we must not be riveting you must not be riveting they must not be riveting
Perfeito
I must not have riveted you must not have riveted she must not have riveted we must not have riveted you must not have riveted they must not have riveted
Perfeito com V-ing
I must not have been riveting you must not have been riveting she must not have been riveting we must not have been riveting you must not have been riveting they must not have been riveting
Forma interrogativa
Forma simple
must I rivet? must you rivet? must she rivet? must we rivet? must you rivet? must they rivet?
Forma com V-ing
must I be riveting? must you be riveting? must she be riveting? must we be riveting? must you be riveting? must they be riveting?
Perfeito
must I have riveted? must you have riveted? must she have riveted? must we have riveted? must you have riveted? must they have riveted?
Perfeito com V-ing
must I have been riveting? must you have been riveting? must she have been riveting? must we have been riveting? must you have been riveting? must they have been riveting?
Forma interro-Negação
Forma simple
must I not rivet? must you not rivet? must she not rivet? must we not rivet? must you not rivet? must they not rivet?
Forma com V-ing
must I not be riveting? must you not be riveting? must she not be riveting? must we not be riveting? must you not be riveting? must they not be riveting?
Perfeito
must I not have riveted? must you not have riveted? must she not have riveted? must we not have riveted? must you not have riveted? must they not have riveted?
Perfeito com V-ing
must I not have been riveting? must you not have been riveting? must she not have been riveting? must we not have been riveting? must you not have been riveting? must they not have been riveting?