may impound
Regular verb: impound - impounded- impounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may impound
you may impound
he may impound
we may impound
you may impound
they may impound 	I may be impounding
you may be impounding
he may be impounding
we may be impounding
you may be impounding
they may be impounding	I may have impounded
you may have impounded
he may have impounded
we may have impounded
you may have impounded
they may have impounded	I may have been impounding
you may have been impounding
he may have been impounding
we may have been impounding
you may have been impounding
they may have been impounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't impound
you mayn't impound
he mayn't impound
we mayn't impound
you mayn't impound
they mayn't impound 	I mayn't be impounding
you mayn't be impounding
he mayn't be impounding
we mayn't be impounding
you mayn't be impounding
they mayn't be impounding	I mayn't have impounded
you mayn't have impounded
he mayn't have impounded
we mayn't have impounded
you mayn't have impounded
they mayn't have impounded	I mayn't have been impounding
you mayn't have been impounding
he mayn't have been impounding
we mayn't have been impounding
you mayn't have been impounding
they mayn't have been impounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I impound?
may you impound?
may he impound?
may we impound?
may you impound?
may they impound? 	may I be impounding?
may you be impounding?
may he be impounding?
may we be impounding?
may you be impounding?
may they be impounding? 	may I have impounded?
may you have impounded?
may he have impounded?
may we have impounded?
may you have impounded?
may they have impounded? 	may I have been impounding?
may you have been impounding?
may he have been impounding?
may we have been impounding?
may you have been impounding?
may they have been impounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I impound?
mayn't you impound?
mayn't he impound?
mayn't we impound?
mayn't you impound?
mayn't they impound? 	mayn't I be impounding?
mayn't you be impounding?
mayn't he be impounding?
mayn't we be impounding?
mayn't you be impounding?
mayn't they be impounding? 	mayn't I have impounded?
mayn't you have impounded?
mayn't he have impounded?
mayn't we have impounded?
mayn't you have impounded?
mayn't they have impounded? 	mayn't I have been impounding?
mayn't you have been impounding?
mayn't he have been impounding?
mayn't we have been impounding?
mayn't you have been impounding?
mayn't they have been impounding?