I may waterproof you may waterproof he may waterproof we may waterproof you may waterproof they may waterproof
Forme en V-ing
I may be waterproofing you may be waterproofing he may be waterproofing we may be waterproofing you may be waterproofing they may be waterproofing
Perfect
I may have waterproofed you may have waterproofed he may have waterproofed we may have waterproofed you may have waterproofed they may have waterproofed
Perfect en V-ing
I may have been waterproofing you may have been waterproofing he may have been waterproofing we may have been waterproofing you may have been waterproofing they may have been waterproofing
Négation
Forme simple
I mayn't waterproof you mayn't waterproof he mayn't waterproof we mayn't waterproof you mayn't waterproof they mayn't waterproof
Forme en V-ing
I mayn't be waterproofing you mayn't be waterproofing he mayn't be waterproofing we mayn't be waterproofing you mayn't be waterproofing they mayn't be waterproofing
Perfect
I mayn't have waterproofed you mayn't have waterproofed he mayn't have waterproofed we mayn't have waterproofed you mayn't have waterproofed they mayn't have waterproofed
Perfect en V-ing
I mayn't have been waterproofing you mayn't have been waterproofing he mayn't have been waterproofing we mayn't have been waterproofing you mayn't have been waterproofing they mayn't have been waterproofing
Forme interrogative
Forme simple
may I waterproof? may you waterproof? may he waterproof? may we waterproof? may you waterproof? may they waterproof?
Forme en V-ing
may I be waterproofing? may you be waterproofing? may he be waterproofing? may we be waterproofing? may you be waterproofing? may they be waterproofing?
Perfect
may I have waterproofed? may you have waterproofed? may he have waterproofed? may we have waterproofed? may you have waterproofed? may they have waterproofed?
Perfect en V-ing
may I have been waterproofing? may you have been waterproofing? may he have been waterproofing? may we have been waterproofing? may you have been waterproofing? may they have been waterproofing?
Forme interro-négative
Forme simple
mayn't I waterproof? mayn't you waterproof? mayn't he waterproof? mayn't we waterproof? mayn't you waterproof? mayn't they waterproof?
Forme en V-ing
mayn't I be waterproofing? mayn't you be waterproofing? mayn't he be waterproofing? mayn't we be waterproofing? mayn't you be waterproofing? mayn't they be waterproofing?
Perfect
mayn't I have waterproofed? mayn't you have waterproofed? mayn't he have waterproofed? mayn't we have waterproofed? mayn't you have waterproofed? mayn't they have waterproofed?
Perfect en V-ing
mayn't I have been waterproofing? mayn't you have been waterproofing? mayn't he have been waterproofing? mayn't we have been waterproofing? mayn't you have been waterproofing? mayn't they have been waterproofing?