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