Conjugação do verbo inglês
MUST STRENGTHEN

Verbo regular: strengthen - strengthened - strengthened

Afirmação

Forma simple	Forma com V-ing
I must strengthen you must strengthen he must strengthen we must strengthen you must strengthen they must strengthen	I must be strengthening you must be strengthening he must be strengthening we must be strengthening you must be strengthening they must be strengthening
Perfeito	Perfeito com V-ing
I must have strengthened you must have strengthened he must have strengthened we must have strengthened you must have strengthened they must have strengthened	I must have been strengthening you must have been strengthening he must have been strengthening we must have been strengthening you must have been strengthening they must have been strengthening

Negação

Forma simple	Forma com V-ing
I mustn't strengthen you mustn't strengthen he mustn't strengthen we mustn't strengthen you mustn't strengthen they mustn't strengthen	I mustn't be strengthening you mustn't be strengthening he mustn't be strengthening we mustn't be strengthening you mustn't be strengthening they mustn't be strengthening
Perfeito	Perfeito com V-ing
I mustn't have strengthened you mustn't have strengthened he mustn't have strengthened we mustn't have strengthened you mustn't have strengthened they mustn't have strengthened	I mustn't have been strengthening you mustn't have been strengthening he mustn't have been strengthening we mustn't have been strengthening you mustn't have been strengthening they mustn't have been strengthening

Forma interrogativa

Forma simple	Forma com V-ing
must I strengthen? must you strengthen? must he strengthen? must we strengthen? must you strengthen? must they strengthen?	must I be strengthening? must you be strengthening? must he be strengthening? must we be strengthening? must you be strengthening? must they be strengthening?
Perfeito	Perfeito com V-ing
must I have strengthened? must you have strengthened? must he have strengthened? must we have strengthened? must you have strengthened? must they have strengthened?	must I have been strengthening? must you have been strengthening? must he have been strengthening? must we have been strengthening? must you have been strengthening? must they have been strengthening?

Forma interro-Negação

Forma simple	Forma com V-ing
mustn't I strengthen? mustn't you strengthen? mustn't he strengthen? mustn't we strengthen? mustn't you strengthen? mustn't they strengthen?	mustn't I be strengthening? mustn't you be strengthening? mustn't he be strengthening? mustn't we be strengthening? mustn't you be strengthening? mustn't they be strengthening?
Perfeito	Perfeito com V-ing
mustn't I have strengthened? mustn't you have strengthened? mustn't he have strengthened? mustn't we have strengthened? mustn't you have strengthened? mustn't they have strengthened?	mustn't I have been strengthening? mustn't you have been strengthening? mustn't he have been strengthening? mustn't we have been strengthening? mustn't you have been strengthening? mustn't they have been strengthening?