I must widen you must widen she must widen we must widen you must widen they must widen
Forma com V-ing
I must be widening you must be widening she must be widening we must be widening you must be widening they must be widening
Perfeito
I must have widened you must have widened she must have widened we must have widened you must have widened they must have widened
Perfeito com V-ing
I must have been widening you must have been widening she must have been widening we must have been widening you must have been widening they must have been widening
Negação
Forma simple
I must not widen you must not widen she must not widen we must not widen you must not widen they must not widen
Forma com V-ing
I must not be widening you must not be widening she must not be widening we must not be widening you must not be widening they must not be widening
Perfeito
I must not have widened you must not have widened she must not have widened we must not have widened you must not have widened they must not have widened
Perfeito com V-ing
I must not have been widening you must not have been widening she must not have been widening we must not have been widening you must not have been widening they must not have been widening
Forma interrogativa
Forma simple
must I widen? must you widen? must she widen? must we widen? must you widen? must they widen?
Forma com V-ing
must I be widening? must you be widening? must she be widening? must we be widening? must you be widening? must they be widening?
Perfeito
must I have widened? must you have widened? must she have widened? must we have widened? must you have widened? must they have widened?
Perfeito com V-ing
must I have been widening? must you have been widening? must she have been widening? must we have been widening? must you have been widening? must they have been widening?
Forma interro-Negação
Forma simple
must I not widen? must you not widen? must she not widen? must we not widen? must you not widen? must they not widen?
Forma com V-ing
must I not be widening? must you not be widening? must she not be widening? must we not be widening? must you not be widening? must they not be widening?
Perfeito
must I not have widened? must you not have widened? must she not have widened? must we not have widened? must you not have widened? must they not have widened?
Perfeito com V-ing
must I not have been widening? must you not have been widening? must she not have been widening? must we not have been widening? must you not have been widening? must they not have been widening?