I may toil you may toil he may toil we may toil you may toil they may toil
V-ing form
I may be toiling you may be toiling he may be toiling we may be toiling you may be toiling they may be toiling
Perfect
I may have toiled you may have toiled he 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 he 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 he 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 he 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 he 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 he 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 he toil? may we toil? may you toil? may they toil?
V-ing form
may I be toiling? may you be toiling? may he be toiling? may we be toiling? may you be toiling? may they be toiling?
Perfect
may I have toiled? may you have toiled? may he 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 he 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 he 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 he 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 he 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 he not have been toiling? may we not have been toiling? may you not have been toiling? may they not have been toiling?