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