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