I must obscure you must obscure she must obscure we must obscure you must obscure they must obscure
Forma com V-ing
I must be obscuring you must be obscuring she must be obscuring we must be obscuring you must be obscuring they must be obscuring
Perfeito
I must have obscured you must have obscured she must have obscured we must have obscured you must have obscured they must have obscured
Perfeito com V-ing
I must have been obscuring you must have been obscuring she must have been obscuring we must have been obscuring you must have been obscuring they must have been obscuring
Negação
Forma simple
I must not obscure you must not obscure she must not obscure we must not obscure you must not obscure they must not obscure
Forma com V-ing
I must not be obscuring you must not be obscuring she must not be obscuring we must not be obscuring you must not be obscuring they must not be obscuring
Perfeito
I must not have obscured you must not have obscured she must not have obscured we must not have obscured you must not have obscured they must not have obscured
Perfeito com V-ing
I must not have been obscuring you must not have been obscuring she must not have been obscuring we must not have been obscuring you must not have been obscuring they must not have been obscuring
Forma interrogativa
Forma simple
must I obscure? must you obscure? must she obscure? must we obscure? must you obscure? must they obscure?
Forma com V-ing
must I be obscuring? must you be obscuring? must she be obscuring? must we be obscuring? must you be obscuring? must they be obscuring?
Perfeito
must I have obscured? must you have obscured? must she have obscured? must we have obscured? must you have obscured? must they have obscured?
Perfeito com V-ing
must I have been obscuring? must you have been obscuring? must she have been obscuring? must we have been obscuring? must you have been obscuring? must they have been obscuring?
Forma interro-Negação
Forma simple
must I not obscure? must you not obscure? must she not obscure? must we not obscure? must you not obscure? must they not obscure?
Forma com V-ing
must I not be obscuring? must you not be obscuring? must she not be obscuring? must we not be obscuring? must you not be obscuring? must they not be obscuring?
Perfeito
must I not have obscured? must you not have obscured? must she not have obscured? must we not have obscured? must you not have obscured? must they not have obscured?
Perfeito com V-ing
must I not have been obscuring? must you not have been obscuring? must she not have been obscuring? must we not have been obscuring? must you not have been obscuring? must they not have been obscuring?