I may sour you may sour she may sour we may sour you may sour they may sour
V-ing form
I may be souring you may be souring she may be souring we may be souring you may be souring they may be souring
Perfect
I may have soured you may have soured she may have soured we may have soured you may have soured they may have soured
V-ing perfect
I may have been souring you may have been souring she may have been souring we may have been souring you may have been souring they may have been souring
Negation
Simple form
I may not sour you may not sour she may not sour we may not sour you may not sour they may not sour
V-ing form
I may not be souring you may not be souring she may not be souring we may not be souring you may not be souring they may not be souring
Perfect
I may not have soured you may not have soured she may not have soured we may not have soured you may not have soured they may not have soured
V-ing perfect
I may not have been souring you may not have been souring she may not have been souring we may not have been souring you may not have been souring they may not have been souring
Interrogative form
Simple form
may I sour? may you sour? may she sour? may we sour? may you sour? may they sour?
V-ing form
may I be souring? may you be souring? may she be souring? may we be souring? may you be souring? may they be souring?
Perfect
may I have soured? may you have soured? may she have soured? may we have soured? may you have soured? may they have soured?
V-ing perfect
may I have been souring? may you have been souring? may she have been souring? may we have been souring? may you have been souring? may they have been souring?
Interro-negative form
Simple form
may I not sour? may you not sour? may she not sour? may we not sour? may you not sour? may they not sour?
V-ing form
may I not be souring? may you not be souring? may she not be souring? may we not be souring? may you not be souring? may they not be souring?
Perfect
may I not have soured? may you not have soured? may she not have soured? may we not have soured? may you not have soured? may they not have soured?
V-ing perfect
may I not have been souring? may you not have been souring? may she not have been souring? may we not have been souring? may you not have been souring? may they not have been souring?