Conjugación del verbo inglés
MUST PREVENT

Verbo regular: prevent - prevented - prevented

Afirmación

Forma simple	Forma con V-ing
I must prevent you must prevent he must prevent we must prevent you must prevent they must prevent	I must be preventing you must be preventing he must be preventing we must be preventing you must be preventing they must be preventing
Perfecto	Perfecto con V-ing
I must have prevented you must have prevented he must have prevented we must have prevented you must have prevented they must have prevented	I must have been preventing you must have been preventing he must have been preventing we must have been preventing you must have been preventing they must have been preventing

Negación

Forma simple	Forma con V-ing
I must not prevent you must not prevent he must not prevent we must not prevent you must not prevent they must not prevent	I must not be preventing you must not be preventing he must not be preventing we must not be preventing you must not be preventing they must not be preventing
Perfecto	Perfecto con V-ing
I must not have prevented you must not have prevented he must not have prevented we must not have prevented you must not have prevented they must not have prevented	I must not have been preventing you must not have been preventing he must not have been preventing we must not have been preventing you must not have been preventing they must not have been preventing

Forma interrogativa

Forma simple	Forma con V-ing
must I prevent? must you prevent? must he prevent? must we prevent? must you prevent? must they prevent?	must I be preventing? must you be preventing? must he be preventing? must we be preventing? must you be preventing? must they be preventing?
Perfecto	Perfecto con V-ing
must I have prevented? must you have prevented? must he have prevented? must we have prevented? must you have prevented? must they have prevented?	must I have been preventing? must you have been preventing? must he have been preventing? must we have been preventing? must you have been preventing? must they have been preventing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not prevent? must you not prevent? must he not prevent? must we not prevent? must you not prevent? must they not prevent?	must I not be preventing? must you not be preventing? must he not be preventing? must we not be preventing? must you not be preventing? must they not be preventing?
Perfecto	Perfecto con V-ing
must I not have prevented? must you not have prevented? must he not have prevented? must we not have prevented? must you not have prevented? must they not have prevented?	must I not have been preventing? must you not have been preventing? must he not have been preventing? must we not have been preventing? must you not have been preventing? must they not have been preventing?