I may usurp you may usurp he may usurp we may usurp you may usurp they may usurp
V-ing form
I may be usurping you may be usurping he may be usurping we may be usurping you may be usurping they may be usurping
Perfect
I may have usurped you may have usurped he 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 he 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 he 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 he 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 he 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 he 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 he usurp? may we usurp? may you usurp? may they usurp?
V-ing form
may I be usurping? may you be usurping? may he be usurping? may we be usurping? may you be usurping? may they be usurping?
Perfect
may I have usurped? may you have usurped? may he 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 he 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 he 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 he 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 he 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 he have been usurping? mayn't we have been usurping? mayn't you have been usurping? mayn't they have been usurping?