I may belch you may belch she may belch we may belch you may belch they may belch
V-ing form
I may be belching you may be belching she may be belching we may be belching you may be belching they may be belching
Perfect
I may have belched you may have belched she may have belched we may have belched you may have belched they may have belched
V-ing perfect
I may have been belching you may have been belching she may have been belching we may have been belching you may have been belching they may have been belching
Negation
Simple form
I mayn't belch you mayn't belch she mayn't belch we mayn't belch you mayn't belch they mayn't belch
V-ing form
I mayn't be belching you mayn't be belching she mayn't be belching we mayn't be belching you mayn't be belching they mayn't be belching
Perfect
I mayn't have belched you mayn't have belched she mayn't have belched we mayn't have belched you mayn't have belched they mayn't have belched
V-ing perfect
I mayn't have been belching you mayn't have been belching she mayn't have been belching we mayn't have been belching you mayn't have been belching they mayn't have been belching
Interrogative form
Simple form
may I belch? may you belch? may she belch? may we belch? may you belch? may they belch?
V-ing form
may I be belching? may you be belching? may she be belching? may we be belching? may you be belching? may they be belching?
Perfect
may I have belched? may you have belched? may she have belched? may we have belched? may you have belched? may they have belched?
V-ing perfect
may I have been belching? may you have been belching? may she have been belching? may we have been belching? may you have been belching? may they have been belching?
Interro-negative form
Simple form
mayn't I belch? mayn't you belch? mayn't she belch? mayn't we belch? mayn't you belch? mayn't they belch?
V-ing form
mayn't I be belching? mayn't you be belching? mayn't she be belching? mayn't we be belching? mayn't you be belching? mayn't they be belching?
Perfect
mayn't I have belched? mayn't you have belched? mayn't she have belched? mayn't we have belched? mayn't you have belched? mayn't they have belched?
V-ing perfect
mayn't I have been belching? mayn't you have been belching? mayn't she have been belching? mayn't we have been belching? mayn't you have been belching? mayn't they have been belching?