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