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