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