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