Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may clean clean you may clean clean she may clean clean we may clean clean you may clean clean they may clean clean
V-ing form
I may be clean cleaning you may be clean cleaning she may be clean cleaning we may be clean cleaning you may be clean cleaning they may be clean cleaning
Perfect
I may have clean cleaned you may have clean cleaned she may have clean cleaned we may have clean cleaned you may have clean cleaned they may have clean cleaned
V-ing perfect
I may have been clean cleaning you may have been clean cleaning she may have been clean cleaning we may have been clean cleaning you may have been clean cleaning they may have been clean cleaning
Negation
Simple form
I may not clean clean you may not clean clean she may not clean clean we may not clean clean you may not clean clean they may not clean clean
V-ing form
I may not be clean cleaning you may not be clean cleaning she may not be clean cleaning we may not be clean cleaning you may not be clean cleaning they may not be clean cleaning
Perfect
I may not have clean cleaned you may not have clean cleaned she may not have clean cleaned we may not have clean cleaned you may not have clean cleaned they may not have clean cleaned
V-ing perfect
I may not have been clean cleaning you may not have been clean cleaning she may not have been clean cleaning we may not have been clean cleaning you may not have been clean cleaning they may not have been clean cleaning
Interrogative form
Simple form
may I clean clean? may you clean clean? may she clean clean? may we clean clean? may you clean clean? may they clean clean?
V-ing form
may I be clean cleaning? may you be clean cleaning? may she be clean cleaning? may we be clean cleaning? may you be clean cleaning? may they be clean cleaning?
Perfect
may I have clean cleaned? may you have clean cleaned? may she have clean cleaned? may we have clean cleaned? may you have clean cleaned? may they have clean cleaned?
V-ing perfect
may I have been clean cleaning? may you have been clean cleaning? may she have been clean cleaning? may we have been clean cleaning? may you have been clean cleaning? may they have been clean cleaning?
Interro-negative form
Simple form
may I not clean clean? may you not clean clean? may she not clean clean? may we not clean clean? may you not clean clean? may they not clean clean?
V-ing form
may I not be clean cleaning? may you not be clean cleaning? may she not be clean cleaning? may we not be clean cleaning? may you not be clean cleaning? may they not be clean cleaning?
Perfect
may I not have clean cleaned? may you not have clean cleaned? may she not have clean cleaned? may we not have clean cleaned? may you not have clean cleaned? may they not have clean cleaned?
V-ing perfect
may I not have been clean cleaning? may you not have been clean cleaning? may she not have been clean cleaning? may we not have been clean cleaning? may you not have been clean cleaning? may they not have been clean cleaning?