I may tread you may tread she may tread we may tread you may tread they may tread
V-ing form
I may be treading you may be treading she may be treading we may be treading you may be treading they may be treading
Perfect
I may have trod, trodden you may have trod, trodden she may have trod, trodden we may have trod, trodden you may have trod, trodden they may have trod, trodden
V-ing perfect
I may have been treading you may have been treading she may have been treading we may have been treading you may have been treading they may have been treading
Negation
Simple form
I mayn't tread you mayn't tread she mayn't tread we mayn't tread you mayn't tread they mayn't tread
V-ing form
I mayn't be treading you mayn't be treading she mayn't be treading we mayn't be treading you mayn't be treading they mayn't be treading
Perfect
I mayn't have trod, trodden you mayn't have trod, trodden she mayn't have trod, trodden we mayn't have trod, trodden you mayn't have trod, trodden they mayn't have trod, trodden
V-ing perfect
I mayn't have been treading you mayn't have been treading she mayn't have been treading we mayn't have been treading you mayn't have been treading they mayn't have been treading
Interrogative form
Simple form
may I tread? may you tread? may she tread? may we tread? may you tread? may they tread?
V-ing form
may I be treading? may you be treading? may she be treading? may we be treading? may you be treading? may they be treading?
Perfect
may I have trod, trodden? may you have trod, trodden? may she have trod, trodden? may we have trod, trodden? may you have trod, trodden? may they have trod, trodden?
V-ing perfect
may I have been treading? may you have been treading? may she have been treading? may we have been treading? may you have been treading? may they have been treading?
Interro-negative form
Simple form
mayn't I tread? mayn't you tread? mayn't she tread? mayn't we tread? mayn't you tread? mayn't they tread?
V-ing form
mayn't I be treading? mayn't you be treading? mayn't she be treading? mayn't we be treading? mayn't you be treading? mayn't they be treading?
Perfect
mayn't I have trod, trodden? mayn't you have trod, trodden? mayn't she have trod, trodden? mayn't we have trod, trodden? mayn't you have trod, trodden? mayn't they have trod, trodden?
V-ing perfect
mayn't I have been treading? mayn't you have been treading? mayn't she have been treading? mayn't we have been treading? mayn't you have been treading? mayn't they have been treading?