I may forswear you may forswear she may forswear we may forswear you may forswear they may forswear
V-ing form
I may be forswearing you may be forswearing she may be forswearing we may be forswearing you may be forswearing they may be forswearing
Perfect
I may have forsworn you may have forsworn she may have forsworn we may have forsworn you may have forsworn they may have forsworn
V-ing perfect
I may have been forswearing you may have been forswearing she may have been forswearing we may have been forswearing you may have been forswearing they may have been forswearing
Negation
Simple form
I mayn't forswear you mayn't forswear she mayn't forswear we mayn't forswear you mayn't forswear they mayn't forswear
V-ing form
I mayn't be forswearing you mayn't be forswearing she mayn't be forswearing we mayn't be forswearing you mayn't be forswearing they mayn't be forswearing
Perfect
I mayn't have forsworn you mayn't have forsworn she mayn't have forsworn we mayn't have forsworn you mayn't have forsworn they mayn't have forsworn
V-ing perfect
I mayn't have been forswearing you mayn't have been forswearing she mayn't have been forswearing we mayn't have been forswearing you mayn't have been forswearing they mayn't have been forswearing
Interrogative form
Simple form
may I forswear? may you forswear? may she forswear? may we forswear? may you forswear? may they forswear?
V-ing form
may I be forswearing? may you be forswearing? may she be forswearing? may we be forswearing? may you be forswearing? may they be forswearing?
Perfect
may I have forsworn? may you have forsworn? may she have forsworn? may we have forsworn? may you have forsworn? may they have forsworn?
V-ing perfect
may I have been forswearing? may you have been forswearing? may she have been forswearing? may we have been forswearing? may you have been forswearing? may they have been forswearing?
Interro-negative form
Simple form
mayn't I forswear? mayn't you forswear? mayn't she forswear? mayn't we forswear? mayn't you forswear? mayn't they forswear?
V-ing form
mayn't I be forswearing? mayn't you be forswearing? mayn't she be forswearing? mayn't we be forswearing? mayn't you be forswearing? mayn't they be forswearing?
Perfect
mayn't I have forsworn? mayn't you have forsworn? mayn't she have forsworn? mayn't we have forsworn? mayn't you have forsworn? mayn't they have forsworn?
V-ing perfect
mayn't I have been forswearing? mayn't you have been forswearing? mayn't she have been forswearing? mayn't we have been forswearing? mayn't you have been forswearing? mayn't they have been forswearing?