Conjugação do verbo inglês
MUST WEAKEN

Verbo regular: weaken - weakened - weakened

Afirmação

Forma simple	Forma com V-ing
I must weaken you must weaken he must weaken we must weaken you must weaken they must weaken	I must be weakening you must be weakening he must be weakening we must be weakening you must be weakening they must be weakening
Perfeito	Perfeito com V-ing
I must have weakened you must have weakened he must have weakened we must have weakened you must have weakened they must have weakened	I must have been weakening you must have been weakening he must have been weakening we must have been weakening you must have been weakening they must have been weakening

Negação

Forma simple	Forma com V-ing
I must not weaken you must not weaken he must not weaken we must not weaken you must not weaken they must not weaken	I must not be weakening you must not be weakening he must not be weakening we must not be weakening you must not be weakening they must not be weakening
Perfeito	Perfeito com V-ing
I must not have weakened you must not have weakened he must not have weakened we must not have weakened you must not have weakened they must not have weakened	I must not have been weakening you must not have been weakening he must not have been weakening we must not have been weakening you must not have been weakening they must not have been weakening

Forma interrogativa

Forma simple	Forma com V-ing
must I weaken? must you weaken? must he weaken? must we weaken? must you weaken? must they weaken?	must I be weakening? must you be weakening? must he be weakening? must we be weakening? must you be weakening? must they be weakening?
Perfeito	Perfeito com V-ing
must I have weakened? must you have weakened? must he have weakened? must we have weakened? must you have weakened? must they have weakened?	must I have been weakening? must you have been weakening? must he have been weakening? must we have been weakening? must you have been weakening? must they have been weakening?

Forma interro-Negação

Forma simple	Forma com V-ing
must I not weaken? must you not weaken? must he not weaken? must we not weaken? must you not weaken? must they not weaken?	must I not be weakening? must you not be weakening? must he not be weakening? must we not be weakening? must you not be weakening? must they not be weakening?
Perfeito	Perfeito com V-ing
must I not have weakened? must you not have weakened? must he not have weakened? must we not have weakened? must you not have weakened? must they not have weakened?	must I not have been weakening? must you not have been weakening? must he not have been weakening? must we not have been weakening? must you not have been weakening? must they not have been weakening?