I may soundproof you may soundproof she may soundproof we may soundproof you may soundproof they may soundproof
V-ing form
I may be soundproofing you may be soundproofing she may be soundproofing we may be soundproofing you may be soundproofing they may be soundproofing
Perfect
I may have soundproofed you may have soundproofed she 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 she 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 she 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 she 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 she 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 she 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 she soundproof? may we soundproof? may you soundproof? may they soundproof?
V-ing form
may I be soundproofing? may you be soundproofing? may she be soundproofing? may we be soundproofing? may you be soundproofing? may they be soundproofing?
Perfect
may I have soundproofed? may you have soundproofed? may she 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 she 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 she 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 she 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 she 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 she have been soundproofing? mayn't we have been soundproofing? mayn't you have been soundproofing? mayn't they have been soundproofing?