I may toil you may toil she may toil we may toil you may toil they may toil
V-ing form
I may be toiling you may be toiling she may be toiling we may be toiling you may be toiling they may be toiling
Perfect
I may have toiled you may have toiled she may have toiled we may have toiled you may have toiled they may have toiled
V-ing perfect
I may have been toiling you may have been toiling she may have been toiling we may have been toiling you may have been toiling they may have been toiling
Negation
Simple form
I may not toil you may not toil she may not toil we may not toil you may not toil they may not toil
V-ing form
I may not be toiling you may not be toiling she may not be toiling we may not be toiling you may not be toiling they may not be toiling
Perfect
I may not have toiled you may not have toiled she may not have toiled we may not have toiled you may not have toiled they may not have toiled
V-ing perfect
I may not have been toiling you may not have been toiling she may not have been toiling we may not have been toiling you may not have been toiling they may not have been toiling
Interrogative form
Simple form
may I toil? may you toil? may she toil? may we toil? may you toil? may they toil?
V-ing form
may I be toiling? may you be toiling? may she be toiling? may we be toiling? may you be toiling? may they be toiling?
Perfect
may I have toiled? may you have toiled? may she have toiled? may we have toiled? may you have toiled? may they have toiled?
V-ing perfect
may I have been toiling? may you have been toiling? may she have been toiling? may we have been toiling? may you have been toiling? may they have been toiling?
Interro-negative form
Simple form
may I not toil? may you not toil? may she not toil? may we not toil? may you not toil? may they not toil?
V-ing form
may I not be toiling? may you not be toiling? may she not be toiling? may we not be toiling? may you not be toiling? may they not be toiling?
Perfect
may I not have toiled? may you not have toiled? may she not have toiled? may we not have toiled? may you not have toiled? may they not have toiled?
V-ing perfect
may I not have been toiling? may you not have been toiling? may she not have been toiling? may we not have been toiling? may you not have been toiling? may they not have been toiling?