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 mayn't toil you mayn't toil he mayn't toil we mayn't toil you mayn't toil they mayn't toil
V-ing form
I mayn't be toiling you mayn't be toiling he mayn't be toiling we mayn't be toiling you mayn't be toiling they mayn't be toiling
Perfect
I mayn't have toiled you mayn't have toiled he mayn't have toiled we mayn't have toiled you mayn't have toiled they mayn't have toiled
V-ing perfect
I mayn't have been toiling you mayn't have been toiling he mayn't have been toiling we mayn't have been toiling you mayn't have been toiling they mayn't 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
mayn't I toil? mayn't you toil? mayn't he toil? mayn't we toil? mayn't you toil? mayn't they toil?
V-ing form
mayn't I be toiling? mayn't you be toiling? mayn't he be toiling? mayn't we be toiling? mayn't you be toiling? mayn't they be toiling?
Perfect
mayn't I have toiled? mayn't you have toiled? mayn't he have toiled? mayn't we have toiled? mayn't you have toiled? mayn't they have toiled?
V-ing perfect
mayn't I have been toiling? mayn't you have been toiling? mayn't he have been toiling? mayn't we have been toiling? mayn't you have been toiling? mayn't they have been toiling?