Conjugação do verbo inglês
MUST EXIST

Verbo regular: exist - existed - existed

Afirmação

Forma simple	Forma com V-ing
I must exist you must exist he must exist we must exist you must exist they must exist	I must be existing you must be existing he must be existing we must be existing you must be existing they must be existing
Perfeito	Perfeito com V-ing
I must have existed you must have existed he must have existed we must have existed you must have existed they must have existed	I must have been existing you must have been existing he must have been existing we must have been existing you must have been existing they must have been existing

Negação

Forma simple	Forma com V-ing
I must not exist you must not exist he must not exist we must not exist you must not exist they must not exist	I must not be existing you must not be existing he must not be existing we must not be existing you must not be existing they must not be existing
Perfeito	Perfeito com V-ing
I must not have existed you must not have existed he must not have existed we must not have existed you must not have existed they must not have existed	I must not have been existing you must not have been existing he must not have been existing we must not have been existing you must not have been existing they must not have been existing

Forma interrogativa

Forma simple	Forma com V-ing
must I exist? must you exist? must he exist? must we exist? must you exist? must they exist?	must I be existing? must you be existing? must he be existing? must we be existing? must you be existing? must they be existing?
Perfeito	Perfeito com V-ing
must I have existed? must you have existed? must he have existed? must we have existed? must you have existed? must they have existed?	must I have been existing? must you have been existing? must he have been existing? must we have been existing? must you have been existing? must they have been existing?

Forma interro-Negação

Forma simple	Forma com V-ing
must I not exist? must you not exist? must he not exist? must we not exist? must you not exist? must they not exist?	must I not be existing? must you not be existing? must he not be existing? must we not be existing? must you not be existing? must they not be existing?
Perfeito	Perfeito com V-ing
must I not have existed? must you not have existed? must he not have existed? must we not have existed? must you not have existed? must they not have existed?	must I not have been existing? must you not have been existing? must he not have been existing? must we not have been existing? must you not have been existing? must they not have been existing?