Conjugação do verbo inglês
MUST TIGHTEN

Verbo regular: tighten - tightened - tightened

Afirmação

Forma simple	Forma com V-ing
I must tighten you must tighten he must tighten we must tighten you must tighten they must tighten	I must be tightening you must be tightening he must be tightening we must be tightening you must be tightening they must be tightening
Perfeito	Perfeito com V-ing
I must have tightened you must have tightened he must have tightened we must have tightened you must have tightened they must have tightened	I must have been tightening you must have been tightening he must have been tightening we must have been tightening you must have been tightening they must have been tightening

Negação

Forma simple	Forma com V-ing
I mustn't tighten you mustn't tighten he mustn't tighten we mustn't tighten you mustn't tighten they mustn't tighten	I mustn't be tightening you mustn't be tightening he mustn't be tightening we mustn't be tightening you mustn't be tightening they mustn't be tightening
Perfeito	Perfeito com V-ing
I mustn't have tightened you mustn't have tightened he mustn't have tightened we mustn't have tightened you mustn't have tightened they mustn't have tightened	I mustn't have been tightening you mustn't have been tightening he mustn't have been tightening we mustn't have been tightening you mustn't have been tightening they mustn't have been tightening

Forma interrogativa

Forma simple	Forma com V-ing
must I tighten? must you tighten? must he tighten? must we tighten? must you tighten? must they tighten?	must I be tightening? must you be tightening? must he be tightening? must we be tightening? must you be tightening? must they be tightening?
Perfeito	Perfeito com V-ing
must I have tightened? must you have tightened? must he have tightened? must we have tightened? must you have tightened? must they have tightened?	must I have been tightening? must you have been tightening? must he have been tightening? must we have been tightening? must you have been tightening? must they have been tightening?

Forma interro-Negação

Forma simple	Forma com V-ing
mustn't I tighten? mustn't you tighten? mustn't he tighten? mustn't we tighten? mustn't you tighten? mustn't they tighten?	mustn't I be tightening? mustn't you be tightening? mustn't he be tightening? mustn't we be tightening? mustn't you be tightening? mustn't they be tightening?
Perfeito	Perfeito com V-ing
mustn't I have tightened? mustn't you have tightened? mustn't he have tightened? mustn't we have tightened? mustn't you have tightened? mustn't they have tightened?	mustn't I have been tightening? mustn't you have been tightening? mustn't he have been tightening? mustn't we have been tightening? mustn't you have been tightening? mustn't they have been tightening?