may harshen
Regular verb: harshen - harshened- harshened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may harshen
you may harshen
he may harshen
we may harshen
you may harshen
they may harshen 	I may be harshening
you may be harshening
he may be harshening
we may be harshening
you may be harshening
they may be harshening	I may have harshened
you may have harshened
he may have harshened
we may have harshened
you may have harshened
they may have harshened	I may have been harshening
you may have been harshening
he may have been harshening
we may have been harshening
you may have been harshening
they may have been harshening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't harshen
you mayn't harshen
he mayn't harshen
we mayn't harshen
you mayn't harshen
they mayn't harshen 	I mayn't be harshening
you mayn't be harshening
he mayn't be harshening
we mayn't be harshening
you mayn't be harshening
they mayn't be harshening	I mayn't have harshened
you mayn't have harshened
he mayn't have harshened
we mayn't have harshened
you mayn't have harshened
they mayn't have harshened	I mayn't have been harshening
you mayn't have been harshening
he mayn't have been harshening
we mayn't have been harshening
you mayn't have been harshening
they mayn't have been harshening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I harshen?
may you harshen?
may he harshen?
may we harshen?
may you harshen?
may they harshen? 	may I be harshening?
may you be harshening?
may he be harshening?
may we be harshening?
may you be harshening?
may they be harshening? 	may I have harshened?
may you have harshened?
may he have harshened?
may we have harshened?
may you have harshened?
may they have harshened? 	may I have been harshening?
may you have been harshening?
may he have been harshening?
may we have been harshening?
may you have been harshening?
may they have been harshening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I harshen?
mayn't you harshen?
mayn't he harshen?
mayn't we harshen?
mayn't you harshen?
mayn't they harshen? 	mayn't I be harshening?
mayn't you be harshening?
mayn't he be harshening?
mayn't we be harshening?
mayn't you be harshening?
mayn't they be harshening? 	mayn't I have harshened?
mayn't you have harshened?
mayn't he have harshened?
mayn't we have harshened?
mayn't you have harshened?
mayn't they have harshened? 	mayn't I have been harshening?
mayn't you have been harshening?
mayn't he have been harshening?
mayn't we have been harshening?
mayn't you have been harshening?
mayn't they have been harshening?