English verb conjugation
MAY CLEAN

Regular verb: clean - cleaned - cleaned

Affirmation

Simple form	V-ing form
I may clean you may clean he may clean we may clean you may clean they may clean	I may be cleaning you may be cleaning he may be cleaning we may be cleaning you may be cleaning they may be cleaning
Perfect	V-ing perfect
I may have cleaned you may have cleaned he may have cleaned we may have cleaned you may have cleaned they may have cleaned	I may have been cleaning you may have been cleaning he may have been cleaning we may have been cleaning you may have been cleaning they may have been cleaning

Negation

Simple form	V-ing form
I mayn't clean you mayn't clean he mayn't clean we mayn't clean you mayn't clean they mayn't clean	I mayn't be cleaning you mayn't be cleaning he mayn't be cleaning we mayn't be cleaning you mayn't be cleaning they mayn't be cleaning
Perfect	V-ing perfect
I mayn't have cleaned you mayn't have cleaned he mayn't have cleaned we mayn't have cleaned you mayn't have cleaned they mayn't have cleaned	I mayn't have been cleaning you mayn't have been cleaning he mayn't have been cleaning we mayn't have been cleaning you mayn't have been cleaning they mayn't have been cleaning

Interrogative form

Simple form	V-ing form
may I clean? may you clean? may he clean? may we clean? may you clean? may they clean?	may I be cleaning? may you be cleaning? may he be cleaning? may we be cleaning? may you be cleaning? may they be cleaning?
Perfect	V-ing perfect
may I have cleaned? may you have cleaned? may he have cleaned? may we have cleaned? may you have cleaned? may they have cleaned?	may I have been cleaning? may you have been cleaning? may he have been cleaning? may we have been cleaning? may you have been cleaning? may they have been cleaning?

Interro-negative form

Simple form	V-ing form
mayn't I clean? mayn't you clean? mayn't he clean? mayn't we clean? mayn't you clean? mayn't they clean?	mayn't I be cleaning? mayn't you be cleaning? mayn't he be cleaning? mayn't we be cleaning? mayn't you be cleaning? mayn't they be cleaning?
Perfect	V-ing perfect
mayn't I have cleaned? mayn't you have cleaned? mayn't he have cleaned? mayn't we have cleaned? mayn't you have cleaned? mayn't they have cleaned?	mayn't I have been cleaning? mayn't you have been cleaning? mayn't he have been cleaning? mayn't we have been cleaning? mayn't you have been cleaning? mayn't they have been cleaning?