Conjugação do verbo inglês
MUST SUSTAIN

Verbo regular: sustain - sustained - sustained

Afirmação

Forma simple	Forma com V-ing
I must sustain you must sustain he must sustain we must sustain you must sustain they must sustain	I must be sustaining you must be sustaining he must be sustaining we must be sustaining you must be sustaining they must be sustaining
Perfeito	Perfeito com V-ing
I must have sustained you must have sustained he must have sustained we must have sustained you must have sustained they must have sustained	I must have been sustaining you must have been sustaining he must have been sustaining we must have been sustaining you must have been sustaining they must have been sustaining

Negação

Forma simple	Forma com V-ing
I mustn't sustain you mustn't sustain he mustn't sustain we mustn't sustain you mustn't sustain they mustn't sustain	I mustn't be sustaining you mustn't be sustaining he mustn't be sustaining we mustn't be sustaining you mustn't be sustaining they mustn't be sustaining
Perfeito	Perfeito com V-ing
I mustn't have sustained you mustn't have sustained he mustn't have sustained we mustn't have sustained you mustn't have sustained they mustn't have sustained	I mustn't have been sustaining you mustn't have been sustaining he mustn't have been sustaining we mustn't have been sustaining you mustn't have been sustaining they mustn't have been sustaining

Forma interrogativa

Forma simple	Forma com V-ing
must I sustain? must you sustain? must he sustain? must we sustain? must you sustain? must they sustain?	must I be sustaining? must you be sustaining? must he be sustaining? must we be sustaining? must you be sustaining? must they be sustaining?
Perfeito	Perfeito com V-ing
must I have sustained? must you have sustained? must he have sustained? must we have sustained? must you have sustained? must they have sustained?	must I have been sustaining? must you have been sustaining? must he have been sustaining? must we have been sustaining? must you have been sustaining? must they have been sustaining?

Forma interro-Negação

Forma simple	Forma com V-ing
mustn't I sustain? mustn't you sustain? mustn't he sustain? mustn't we sustain? mustn't you sustain? mustn't they sustain?	mustn't I be sustaining? mustn't you be sustaining? mustn't he be sustaining? mustn't we be sustaining? mustn't you be sustaining? mustn't they be sustaining?
Perfeito	Perfeito com V-ing
mustn't I have sustained? mustn't you have sustained? mustn't he have sustained? mustn't we have sustained? mustn't you have sustained? mustn't they have sustained?	mustn't I have been sustaining? mustn't you have been sustaining? mustn't he have been sustaining? mustn't we have been sustaining? mustn't you have been sustaining? mustn't they have been sustaining?