I may lift you may lift he may lift we may lift you may lift they may lift
V-ing form
I may be lifting you may be lifting he may be lifting we may be lifting you may be lifting they may be lifting
Perfect
I may have lifted you may have lifted he 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 he 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 he 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 he 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 he 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 he 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 he lift? may we lift? may you lift? may they lift?
V-ing form
may I be lifting? may you be lifting? may he be lifting? may we be lifting? may you be lifting? may they be lifting?
Perfect
may I have lifted? may you have lifted? may he 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 he 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 he 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 he 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 he 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 he have been lifting? mayn't we have been lifting? mayn't you have been lifting? mayn't they have been lifting?