may scowl
Regular verb: scowl - scowled- scowled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may scowl
you may scowl
he may scowl
we may scowl
you may scowl
they may scowl 	I may be scowling
you may be scowling
he may be scowling
we may be scowling
you may be scowling
they may be scowling	I may have scowled
you may have scowled
he may have scowled
we may have scowled
you may have scowled
they may have scowled	I may have been scowling
you may have been scowling
he may have been scowling
we may have been scowling
you may have been scowling
they may have been scowling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't scowl
you mayn't scowl
he mayn't scowl
we mayn't scowl
you mayn't scowl
they mayn't scowl 	I mayn't be scowling
you mayn't be scowling
he mayn't be scowling
we mayn't be scowling
you mayn't be scowling
they mayn't be scowling	I mayn't have scowled
you mayn't have scowled
he mayn't have scowled
we mayn't have scowled
you mayn't have scowled
they mayn't have scowled	I mayn't have been scowling
you mayn't have been scowling
he mayn't have been scowling
we mayn't have been scowling
you mayn't have been scowling
they mayn't have been scowling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I scowl?
may you scowl?
may he scowl?
may we scowl?
may you scowl?
may they scowl? 	may I be scowling?
may you be scowling?
may he be scowling?
may we be scowling?
may you be scowling?
may they be scowling? 	may I have scowled?
may you have scowled?
may he have scowled?
may we have scowled?
may you have scowled?
may they have scowled? 	may I have been scowling?
may you have been scowling?
may he have been scowling?
may we have been scowling?
may you have been scowling?
may they have been scowling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I scowl?
mayn't you scowl?
mayn't he scowl?
mayn't we scowl?
mayn't you scowl?
mayn't they scowl? 	mayn't I be scowling?
mayn't you be scowling?
mayn't he be scowling?
mayn't we be scowling?
mayn't you be scowling?
mayn't they be scowling? 	mayn't I have scowled?
mayn't you have scowled?
mayn't he have scowled?
mayn't we have scowled?
mayn't you have scowled?
mayn't they have scowled? 	mayn't I have been scowling?
mayn't you have been scowling?
mayn't he have been scowling?
mayn't we have been scowling?
mayn't you have been scowling?
mayn't they have been scowling?