may richen
Regular verb: richen - richened- richened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may richen
you may richen
she may richen
we may richen
you may richen
they may richen 	I may be richening
you may be richening
she may be richening
we may be richening
you may be richening
they may be richening	I may have richened
you may have richened
she may have richened
we may have richened
you may have richened
they may have richened	I may have been richening
you may have been richening
she may have been richening
we may have been richening
you may have been richening
they may have been richening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't richen
you mayn't richen
she mayn't richen
we mayn't richen
you mayn't richen
they mayn't richen 	I mayn't be richening
you mayn't be richening
she mayn't be richening
we mayn't be richening
you mayn't be richening
they mayn't be richening	I mayn't have richened
you mayn't have richened
she mayn't have richened
we mayn't have richened
you mayn't have richened
they mayn't have richened	I mayn't have been richening
you mayn't have been richening
she mayn't have been richening
we mayn't have been richening
you mayn't have been richening
they mayn't have been richening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I richen?
may you richen?
may she richen?
may we richen?
may you richen?
may they richen? 	may I be richening?
may you be richening?
may she be richening?
may we be richening?
may you be richening?
may they be richening? 	may I have richened?
may you have richened?
may she have richened?
may we have richened?
may you have richened?
may they have richened? 	may I have been richening?
may you have been richening?
may she have been richening?
may we have been richening?
may you have been richening?
may they have been richening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I richen?
mayn't you richen?
mayn't she richen?
mayn't we richen?
mayn't you richen?
mayn't they richen? 	mayn't I be richening?
mayn't you be richening?
mayn't she be richening?
mayn't we be richening?
mayn't you be richening?
mayn't they be richening? 	mayn't I have richened?
mayn't you have richened?
mayn't she have richened?
mayn't we have richened?
mayn't you have richened?
mayn't they have richened? 	mayn't I have been richening?
mayn't you have been richening?
mayn't she have been richening?
mayn't we have been richening?
mayn't you have been richening?
mayn't they have been richening?