I must labor you must labor she must labor we must labor you must labor they must labor
Forma com V-ing
I must be laboring you must be laboring she must be laboring we must be laboring you must be laboring they must be laboring
Perfeito
I must have labored you must have labored she must have labored we must have labored you must have labored they must have labored
Perfeito com V-ing
I must have been laboring you must have been laboring she must have been laboring we must have been laboring you must have been laboring they must have been laboring
Negação
Forma simple
I must not labor you must not labor she must not labor we must not labor you must not labor they must not labor
Forma com V-ing
I must not be laboring you must not be laboring she must not be laboring we must not be laboring you must not be laboring they must not be laboring
Perfeito
I must not have labored you must not have labored she must not have labored we must not have labored you must not have labored they must not have labored
Perfeito com V-ing
I must not have been laboring you must not have been laboring she must not have been laboring we must not have been laboring you must not have been laboring they must not have been laboring
Forma interrogativa
Forma simple
must I labor? must you labor? must she labor? must we labor? must you labor? must they labor?
Forma com V-ing
must I be laboring? must you be laboring? must she be laboring? must we be laboring? must you be laboring? must they be laboring?
Perfeito
must I have labored? must you have labored? must she have labored? must we have labored? must you have labored? must they have labored?
Perfeito com V-ing
must I have been laboring? must you have been laboring? must she have been laboring? must we have been laboring? must you have been laboring? must they have been laboring?
Forma interro-Negação
Forma simple
must I not labor? must you not labor? must she not labor? must we not labor? must you not labor? must they not labor?
Forma com V-ing
must I not be laboring? must you not be laboring? must she not be laboring? must we not be laboring? must you not be laboring? must they not be laboring?
Perfeito
must I not have labored? must you not have labored? must she not have labored? must we not have labored? must you not have labored? must they not have labored?
Perfeito com V-ing
must I not have been laboring? must you not have been laboring? must she not have been laboring? must we not have been laboring? must you not have been laboring? must they not have been laboring?