Conjugación del verbo inglés
MUST CONTAIN

Verbo regular: contain - contained - contained

Afirmación

Forma simple	Forma con V-ing
I must contain you must contain she must contain we must contain you must contain they must contain	I must be containing you must be containing she must be containing we must be containing you must be containing they must be containing
Perfecto	Perfecto con V-ing
I must have contained you must have contained she must have contained we must have contained you must have contained they must have contained	I must have been containing you must have been containing she must have been containing we must have been containing you must have been containing they must have been containing

Negación

Forma simple	Forma con V-ing
I must not contain you must not contain she must not contain we must not contain you must not contain they must not contain	I must not be containing you must not be containing she must not be containing we must not be containing you must not be containing they must not be containing
Perfecto	Perfecto con V-ing
I must not have contained you must not have contained she must not have contained we must not have contained you must not have contained they must not have contained	I must not have been containing you must not have been containing she must not have been containing we must not have been containing you must not have been containing they must not have been containing

Forma interrogativa

Forma simple	Forma con V-ing
must I contain? must you contain? must she contain? must we contain? must you contain? must they contain?	must I be containing? must you be containing? must she be containing? must we be containing? must you be containing? must they be containing?
Perfecto	Perfecto con V-ing
must I have contained? must you have contained? must she have contained? must we have contained? must you have contained? must they have contained?	must I have been containing? must you have been containing? must she have been containing? must we have been containing? must you have been containing? must they have been containing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not contain? must you not contain? must she not contain? must we not contain? must you not contain? must they not contain?	must I not be containing? must you not be containing? must she not be containing? must we not be containing? must you not be containing? must they not be containing?
Perfecto	Perfecto con V-ing
must I not have contained? must you not have contained? must she not have contained? must we not have contained? must you not have contained? must they not have contained?	must I not have been containing? must you not have been containing? must she not have been containing? must we not have been containing? must you not have been containing? must they not have been containing?