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 mayn't proof you mayn't proof he mayn't proof we mayn't proof you mayn't proof they mayn't proof
V-ing form
I mayn't be proofing you mayn't be proofing he mayn't be proofing we mayn't be proofing you mayn't be proofing they mayn't be proofing
Perfect
I mayn't have proofed you mayn't have proofed he mayn't have proofed we mayn't have proofed you mayn't have proofed they mayn't have proofed
V-ing perfect
I mayn't have been proofing you mayn't have been proofing he mayn't have been proofing we mayn't have been proofing you mayn't have been proofing they mayn't 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
mayn't I proof? mayn't you proof? mayn't he proof? mayn't we proof? mayn't you proof? mayn't they proof?
V-ing form
mayn't I be proofing? mayn't you be proofing? mayn't he be proofing? mayn't we be proofing? mayn't you be proofing? mayn't they be proofing?
Perfect
mayn't I have proofed? mayn't you have proofed? mayn't he have proofed? mayn't we have proofed? mayn't you have proofed? mayn't they have proofed?
V-ing perfect
mayn't I have been proofing? mayn't you have been proofing? mayn't he have been proofing? mayn't we have been proofing? mayn't you have been proofing? mayn't they have been proofing?