may grouse
Regular verb: grouse - groused- groused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may grouse
you may grouse
she may grouse
we may grouse
you may grouse
they may grouse 	I may be grousing
you may be grousing
she may be grousing
we may be grousing
you may be grousing
they may be grousing	I may have groused
you may have groused
she may have groused
we may have groused
you may have groused
they may have groused	I may have been grousing
you may have been grousing
she may have been grousing
we may have been grousing
you may have been grousing
they may have been grousing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't grouse
you mayn't grouse
she mayn't grouse
we mayn't grouse
you mayn't grouse
they mayn't grouse 	I mayn't be grousing
you mayn't be grousing
she mayn't be grousing
we mayn't be grousing
you mayn't be grousing
they mayn't be grousing	I mayn't have groused
you mayn't have groused
she mayn't have groused
we mayn't have groused
you mayn't have groused
they mayn't have groused	I mayn't have been grousing
you mayn't have been grousing
she mayn't have been grousing
we mayn't have been grousing
you mayn't have been grousing
they mayn't have been grousing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I grouse?
may you grouse?
may she grouse?
may we grouse?
may you grouse?
may they grouse? 	may I be grousing?
may you be grousing?
may she be grousing?
may we be grousing?
may you be grousing?
may they be grousing? 	may I have groused?
may you have groused?
may she have groused?
may we have groused?
may you have groused?
may they have groused? 	may I have been grousing?
may you have been grousing?
may she have been grousing?
may we have been grousing?
may you have been grousing?
may they have been grousing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I grouse?
mayn't you grouse?
mayn't she grouse?
mayn't we grouse?
mayn't you grouse?
mayn't they grouse? 	mayn't I be grousing?
mayn't you be grousing?
mayn't she be grousing?
mayn't we be grousing?
mayn't you be grousing?
mayn't they be grousing? 	mayn't I have groused?
mayn't you have groused?
mayn't she have groused?
mayn't we have groused?
mayn't you have groused?
mayn't they have groused? 	mayn't I have been grousing?
mayn't you have been grousing?
mayn't she have been grousing?
mayn't we have been grousing?
mayn't you have been grousing?
mayn't they have been grousing?