Conjugación del verbo inglés
MUST EXIST

Verbo regular: exist - existed - existed

Afirmación

Forma simple	Forma con V-ing
I must exist you must exist she must exist we must exist you must exist they must exist	I must be existing you must be existing she must be existing we must be existing you must be existing they must be existing
Perfecto	Perfecto con V-ing
I must have existed you must have existed she 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 she must have been existing we must have been existing you must have been existing they must have been existing

Negación

Forma simple	Forma con V-ing
I must not exist you must not exist she 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 she must not be existing we must not be existing you must not be existing they must not be existing
Perfecto	Perfecto con V-ing
I must not have existed you must not have existed she 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 she 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 con V-ing
must I exist? must you exist? must she exist? must we exist? must you exist? must they exist?	must I be existing? must you be existing? must she be existing? must we be existing? must you be existing? must they be existing?
Perfecto	Perfecto con V-ing
must I have existed? must you have existed? must she 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 she have been existing? must we have been existing? must you have been existing? must they have been existing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not exist? must you not exist? must she 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 she not be existing? must we not be existing? must you not be existing? must they not be existing?
Perfecto	Perfecto con V-ing
must I not have existed? must you not have existed? must she 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 she not have been existing? must we not have been existing? must you not have been existing? must they not have been existing?