Conjugación del verbo inglés
MUST PROOF

Verbo regular: proof - proofed - proofed

Afirmación

Forma simple	Forma con V-ing
I must proof you must proof he must proof we must proof you must proof they must proof	I must be proofing you must be proofing he must be proofing we must be proofing you must be proofing they must be proofing
Perfecto	Perfecto con V-ing
I must have proofed you must have proofed he must have proofed we must have proofed you must have proofed they must have proofed	I must have been proofing you must have been proofing he must have been proofing we must have been proofing you must have been proofing they must have been proofing

Negación

Forma simple	Forma con V-ing
I must not proof you must not proof he must not proof we must not proof you must not proof they must not proof	I must not be proofing you must not be proofing he must not be proofing we must not be proofing you must not be proofing they must not be proofing
Perfecto	Perfecto con V-ing
I must not have proofed you must not have proofed he must not have proofed we must not have proofed you must not have proofed they must not have proofed	I must not have been proofing you must not have been proofing he must not have been proofing we must not have been proofing you must not have been proofing they must not have been proofing

Forma interrogativa

Forma simple	Forma con V-ing
must I proof? must you proof? must he proof? must we proof? must you proof? must they proof?	must I be proofing? must you be proofing? must he be proofing? must we be proofing? must you be proofing? must they be proofing?
Perfecto	Perfecto con V-ing
must I have proofed? must you have proofed? must he have proofed? must we have proofed? must you have proofed? must they have proofed?	must I have been proofing? must you have been proofing? must he have been proofing? must we have been proofing? must you have been proofing? must they have been proofing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not proof? must you not proof? must he not proof? must we not proof? must you not proof? must they not proof?	must I not be proofing? must you not be proofing? must he not be proofing? must we not be proofing? must you not be proofing? must they not be proofing?
Perfecto	Perfecto con V-ing
must I not have proofed? must you not have proofed? must he not have proofed? must we not have proofed? must you not have proofed? must they not have proofed?	must I not have been proofing? must you not have been proofing? must he not have been proofing? must we not have been proofing? must you not have been proofing? must they not have been proofing?