I may untie you may untie he may untie we may untie you may untie they may untie
V-ing form
I may be untying you may be untying he may be untying we may be untying you may be untying they may be untying
Perfect
I may have untied you may have untied he may have untied we may have untied you may have untied they may have untied
V-ing perfect
I may have been untying you may have been untying he may have been untying we may have been untying you may have been untying they may have been untying
Negation
Simple form
I mayn't untie you mayn't untie he mayn't untie we mayn't untie you mayn't untie they mayn't untie
V-ing form
I mayn't be untying you mayn't be untying he mayn't be untying we mayn't be untying you mayn't be untying they mayn't be untying
Perfect
I mayn't have untied you mayn't have untied he mayn't have untied we mayn't have untied you mayn't have untied they mayn't have untied
V-ing perfect
I mayn't have been untying you mayn't have been untying he mayn't have been untying we mayn't have been untying you mayn't have been untying they mayn't have been untying
Interrogative form
Simple form
may I untie? may you untie? may he untie? may we untie? may you untie? may they untie?
V-ing form
may I be untying? may you be untying? may he be untying? may we be untying? may you be untying? may they be untying?
Perfect
may I have untied? may you have untied? may he have untied? may we have untied? may you have untied? may they have untied?
V-ing perfect
may I have been untying? may you have been untying? may he have been untying? may we have been untying? may you have been untying? may they have been untying?
Interro-negative form
Simple form
mayn't I untie? mayn't you untie? mayn't he untie? mayn't we untie? mayn't you untie? mayn't they untie?
V-ing form
mayn't I be untying? mayn't you be untying? mayn't he be untying? mayn't we be untying? mayn't you be untying? mayn't they be untying?
Perfect
mayn't I have untied? mayn't you have untied? mayn't he have untied? mayn't we have untied? mayn't you have untied? mayn't they have untied?
V-ing perfect
mayn't I have been untying? mayn't you have been untying? mayn't he have been untying? mayn't we have been untying? mayn't you have been untying? mayn't they have been untying?