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