I may proof you may proof he may proof we may proof you may proof they may proof
V-ing form
I may be proofing you may be proofing he may be proofing we may be proofing you may be proofing they may be proofing
Perfect
I may have proofed you may have proofed he may have proofed we may have proofed you may have proofed they may have proofed
V-ing perfect
I may have been proofing you may have been proofing he may have been proofing we may have been proofing you may have been proofing they may have been proofing
Negation
Simple form
I may not proof you may not proof he may not proof we may not proof you may not proof they may not proof
V-ing form
I may not be proofing you may not be proofing he may not be proofing we may not be proofing you may not be proofing they may not be proofing
Perfect
I may not have proofed you may not have proofed he may not have proofed we may not have proofed you may not have proofed they may not have proofed
V-ing perfect
I may not have been proofing you may not have been proofing he may not have been proofing we may not have been proofing you may not have been proofing they may not have been proofing
Interrogative form
Simple form
may I proof? may you proof? may he proof? may we proof? may you proof? may they proof?
V-ing form
may I be proofing? may you be proofing? may he be proofing? may we be proofing? may you be proofing? may they be proofing?
Perfect
may I have proofed? may you have proofed? may he have proofed? may we have proofed? may you have proofed? may they have proofed?
V-ing perfect
may I have been proofing? may you have been proofing? may he have been proofing? may we have been proofing? may you have been proofing? may they have been proofing?
Interro-negative form
Simple form
may I not proof? may you not proof? may he not proof? may we not proof? may you not proof? may they not proof?
V-ing form
may I not be proofing? may you not be proofing? may he not be proofing? may we not be proofing? may you not be proofing? may they not be proofing?
Perfect
may I not have proofed? may you not have proofed? may he not have proofed? may we not have proofed? may you not have proofed? may they not have proofed?
V-ing perfect
may I not have been proofing? may you not have been proofing? may he not have been proofing? may we not have been proofing? may you not have been proofing? may they not have been proofing?