I must prefix you must prefix she must prefix we must prefix you must prefix they must prefix
Forma com V-ing
I must be prefixing you must be prefixing she must be prefixing we must be prefixing you must be prefixing they must be prefixing
Perfeito
I must have prefixed you must have prefixed she must have prefixed we must have prefixed you must have prefixed they must have prefixed
Perfeito com V-ing
I must have been prefixing you must have been prefixing she must have been prefixing we must have been prefixing you must have been prefixing they must have been prefixing
Negação
Forma simple
I must not prefix you must not prefix she must not prefix we must not prefix you must not prefix they must not prefix
Forma com V-ing
I must not be prefixing you must not be prefixing she must not be prefixing we must not be prefixing you must not be prefixing they must not be prefixing
Perfeito
I must not have prefixed you must not have prefixed she must not have prefixed we must not have prefixed you must not have prefixed they must not have prefixed
Perfeito com V-ing
I must not have been prefixing you must not have been prefixing she must not have been prefixing we must not have been prefixing you must not have been prefixing they must not have been prefixing
Forma interrogativa
Forma simple
must I prefix? must you prefix? must she prefix? must we prefix? must you prefix? must they prefix?
Forma com V-ing
must I be prefixing? must you be prefixing? must she be prefixing? must we be prefixing? must you be prefixing? must they be prefixing?
Perfeito
must I have prefixed? must you have prefixed? must she have prefixed? must we have prefixed? must you have prefixed? must they have prefixed?
Perfeito com V-ing
must I have been prefixing? must you have been prefixing? must she have been prefixing? must we have been prefixing? must you have been prefixing? must they have been prefixing?
Forma interro-Negação
Forma simple
must I not prefix? must you not prefix? must she not prefix? must we not prefix? must you not prefix? must they not prefix?
Forma com V-ing
must I not be prefixing? must you not be prefixing? must she not be prefixing? must we not be prefixing? must you not be prefixing? must they not be prefixing?
Perfeito
must I not have prefixed? must you not have prefixed? must she not have prefixed? must we not have prefixed? must you not have prefixed? must they not have prefixed?
Perfeito com V-ing
must I not have been prefixing? must you not have been prefixing? must she not have been prefixing? must we not have been prefixing? must you not have been prefixing? must they not have been prefixing?