English verb conjugation
MAY RICHEN

Regular verb: richen - richened - richened

Affirmation

Simple form	V-ing form
I may richen you may richen he may richen we may richen you may richen they may richen	I may be richening you may be richening he may be richening we may be richening you may be richening they may be richening
Perfect	V-ing perfect
I may have richened you may have richened he 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 he 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
I may not richen you may not richen he may not richen we may not richen you may not richen they may not richen	I may not be richening you may not be richening he may not be richening we may not be richening you may not be richening they may not be richening
Perfect	V-ing perfect
I may not have richened you may not have richened he may not have richened we may not have richened you may not have richened they may not have richened	I may not have been richening you may not have been richening he may not have been richening we may not have been richening you may not have been richening they may not have been richening

Interrogative form

Simple form	V-ing form
may I richen? may you richen? may he richen? may we richen? may you richen? may they richen?	may I be richening? may you be richening? may he be richening? may we be richening? may you be richening? may they be richening?
Perfect	V-ing perfect
may I have richened? may you have richened? may he 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 he 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
may I not richen? may you not richen? may he not richen? may we not richen? may you not richen? may they not richen?	may I not be richening? may you not be richening? may he not be richening? may we not be richening? may you not be richening? may they not be richening?
Perfect	V-ing perfect
may I not have richened? may you not have richened? may he not have richened? may we not have richened? may you not have richened? may they not have richened?	may I not have been richening? may you not have been richening? may he not have been richening? may we not have been richening? may you not have been richening? may they not have been richening?