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