may harm
Regular verb: harm - harmed- harmed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may harm
you may harm
he may harm
we may harm
you may harm
they may harm 	I may be harming
you may be harming
he may be harming
we may be harming
you may be harming
they may be harming	I may have harmed
you may have harmed
he may have harmed
we may have harmed
you may have harmed
they may have harmed	I may have been harming
you may have been harming
he may have been harming
we may have been harming
you may have been harming
they may have been harming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't harm
you mayn't harm
he mayn't harm
we mayn't harm
you mayn't harm
they mayn't harm 	I mayn't be harming
you mayn't be harming
he mayn't be harming
we mayn't be harming
you mayn't be harming
they mayn't be harming	I mayn't have harmed
you mayn't have harmed
he mayn't have harmed
we mayn't have harmed
you mayn't have harmed
they mayn't have harmed	I mayn't have been harming
you mayn't have been harming
he mayn't have been harming
we mayn't have been harming
you mayn't have been harming
they mayn't have been harming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I harm?
may you harm?
may he harm?
may we harm?
may you harm?
may they harm? 	may I be harming?
may you be harming?
may he be harming?
may we be harming?
may you be harming?
may they be harming? 	may I have harmed?
may you have harmed?
may he have harmed?
may we have harmed?
may you have harmed?
may they have harmed? 	may I have been harming?
may you have been harming?
may he have been harming?
may we have been harming?
may you have been harming?
may they have been harming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I harm?
mayn't you harm?
mayn't he harm?
mayn't we harm?
mayn't you harm?
mayn't they harm? 	mayn't I be harming?
mayn't you be harming?
mayn't he be harming?
mayn't we be harming?
mayn't you be harming?
mayn't they be harming? 	mayn't I have harmed?
mayn't you have harmed?
mayn't he have harmed?
mayn't we have harmed?
mayn't you have harmed?
mayn't they have harmed? 	mayn't I have been harming?
mayn't you have been harming?
mayn't he have been harming?
mayn't we have been harming?
mayn't you have been harming?
mayn't they have been harming?