I may quakeproof you may quakeproof he may quakeproof we may quakeproof you may quakeproof they may quakeproof
V-ing form
I may be quakeproofing you may be quakeproofing he may be quakeproofing we may be quakeproofing you may be quakeproofing they may be quakeproofing
Perfect
I may have quakeproofed you may have quakeproofed he may have quakeproofed we may have quakeproofed you may have quakeproofed they may have quakeproofed
V-ing perfect
I may have been quakeproofing you may have been quakeproofing he may have been quakeproofing we may have been quakeproofing you may have been quakeproofing they may have been quakeproofing
Negation
Simple form
I mayn't quakeproof you mayn't quakeproof he mayn't quakeproof we mayn't quakeproof you mayn't quakeproof they mayn't quakeproof
V-ing form
I mayn't be quakeproofing you mayn't be quakeproofing he mayn't be quakeproofing we mayn't be quakeproofing you mayn't be quakeproofing they mayn't be quakeproofing
Perfect
I mayn't have quakeproofed you mayn't have quakeproofed he mayn't have quakeproofed we mayn't have quakeproofed you mayn't have quakeproofed they mayn't have quakeproofed
V-ing perfect
I mayn't have been quakeproofing you mayn't have been quakeproofing he mayn't have been quakeproofing we mayn't have been quakeproofing you mayn't have been quakeproofing they mayn't have been quakeproofing
Interrogative form
Simple form
may I quakeproof? may you quakeproof? may he quakeproof? may we quakeproof? may you quakeproof? may they quakeproof?
V-ing form
may I be quakeproofing? may you be quakeproofing? may he be quakeproofing? may we be quakeproofing? may you be quakeproofing? may they be quakeproofing?
Perfect
may I have quakeproofed? may you have quakeproofed? may he have quakeproofed? may we have quakeproofed? may you have quakeproofed? may they have quakeproofed?
V-ing perfect
may I have been quakeproofing? may you have been quakeproofing? may he have been quakeproofing? may we have been quakeproofing? may you have been quakeproofing? may they have been quakeproofing?
Interro-negative form
Simple form
mayn't I quakeproof? mayn't you quakeproof? mayn't he quakeproof? mayn't we quakeproof? mayn't you quakeproof? mayn't they quakeproof?
V-ing form
mayn't I be quakeproofing? mayn't you be quakeproofing? mayn't he be quakeproofing? mayn't we be quakeproofing? mayn't you be quakeproofing? mayn't they be quakeproofing?
Perfect
mayn't I have quakeproofed? mayn't you have quakeproofed? mayn't he have quakeproofed? mayn't we have quakeproofed? mayn't you have quakeproofed? mayn't they have quakeproofed?
V-ing perfect
mayn't I have been quakeproofing? mayn't you have been quakeproofing? mayn't he have been quakeproofing? mayn't we have been quakeproofing? mayn't you have been quakeproofing? mayn't they have been quakeproofing?