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