Conjugação do verbo inglês
MUST UNDERSTUDY

Verbo regular: understudy - understudied - understudied

Afirmação

Forma simple	Forma com V-ing
I must understudy you must understudy he must understudy we must understudy you must understudy they must understudy	I must be understudying you must be understudying he must be understudying we must be understudying you must be understudying they must be understudying
Perfeito	Perfeito com V-ing
I must have understudied you must have understudied he must have understudied we must have understudied you must have understudied they must have understudied	I must have been understudying you must have been understudying he must have been understudying we must have been understudying you must have been understudying they must have been understudying

Negação

Forma simple	Forma com V-ing
I must not understudy you must not understudy he must not understudy we must not understudy you must not understudy they must not understudy	I must not be understudying you must not be understudying he must not be understudying we must not be understudying you must not be understudying they must not be understudying
Perfeito	Perfeito com V-ing
I must not have understudied you must not have understudied he must not have understudied we must not have understudied you must not have understudied they must not have understudied	I must not have been understudying you must not have been understudying he must not have been understudying we must not have been understudying you must not have been understudying they must not have been understudying

Forma interrogativa

Forma simple	Forma com V-ing
must I understudy? must you understudy? must he understudy? must we understudy? must you understudy? must they understudy?	must I be understudying? must you be understudying? must he be understudying? must we be understudying? must you be understudying? must they be understudying?
Perfeito	Perfeito com V-ing
must I have understudied? must you have understudied? must he have understudied? must we have understudied? must you have understudied? must they have understudied?	must I have been understudying? must you have been understudying? must he have been understudying? must we have been understudying? must you have been understudying? must they have been understudying?

Forma interro-Negação

Forma simple	Forma com V-ing
must I not understudy? must you not understudy? must he not understudy? must we not understudy? must you not understudy? must they not understudy?	must I not be understudying? must you not be understudying? must he not be understudying? must we not be understudying? must you not be understudying? must they not be understudying?
Perfeito	Perfeito com V-ing
must I not have understudied? must you not have understudied? must he not have understudied? must we not have understudied? must you not have understudied? must they not have understudied?	must I not have been understudying? must you not have been understudying? must he not have been understudying? must we not have been understudying? must you not have been understudying? must they not have been understudying?