I may window-dress you may window-dress she may window-dress we may window-dress you may window-dress they may window-dress
V-ing form
I may be window-dressing you may be window-dressing she may be window-dressing we may be window-dressing you may be window-dressing they may be window-dressing
Perfect
I may have window-dressed you may have window-dressed she may have window-dressed we may have window-dressed you may have window-dressed they may have window-dressed
V-ing perfect
I may have been window-dressing you may have been window-dressing she may have been window-dressing we may have been window-dressing you may have been window-dressing they may have been window-dressing
Negation
Simple form
I mayn't window-dress you mayn't window-dress she mayn't window-dress we mayn't window-dress you mayn't window-dress they mayn't window-dress
V-ing form
I mayn't be window-dressing you mayn't be window-dressing she mayn't be window-dressing we mayn't be window-dressing you mayn't be window-dressing they mayn't be window-dressing
Perfect
I mayn't have window-dressed you mayn't have window-dressed she mayn't have window-dressed we mayn't have window-dressed you mayn't have window-dressed they mayn't have window-dressed
V-ing perfect
I mayn't have been window-dressing you mayn't have been window-dressing she mayn't have been window-dressing we mayn't have been window-dressing you mayn't have been window-dressing they mayn't have been window-dressing
Interrogative form
Simple form
may I window-dress? may you window-dress? may she window-dress? may we window-dress? may you window-dress? may they window-dress?
V-ing form
may I be window-dressing? may you be window-dressing? may she be window-dressing? may we be window-dressing? may you be window-dressing? may they be window-dressing?
Perfect
may I have window-dressed? may you have window-dressed? may she have window-dressed? may we have window-dressed? may you have window-dressed? may they have window-dressed?
V-ing perfect
may I have been window-dressing? may you have been window-dressing? may she have been window-dressing? may we have been window-dressing? may you have been window-dressing? may they have been window-dressing?
Interro-negative form
Simple form
mayn't I window-dress? mayn't you window-dress? mayn't she window-dress? mayn't we window-dress? mayn't you window-dress? mayn't they window-dress?
V-ing form
mayn't I be window-dressing? mayn't you be window-dressing? mayn't she be window-dressing? mayn't we be window-dressing? mayn't you be window-dressing? mayn't they be window-dressing?
Perfect
mayn't I have window-dressed? mayn't you have window-dressed? mayn't she have window-dressed? mayn't we have window-dressed? mayn't you have window-dressed? mayn't they have window-dressed?
V-ing perfect
mayn't I have been window-dressing? mayn't you have been window-dressing? mayn't she have been window-dressing? mayn't we have been window-dressing? mayn't you have been window-dressing? mayn't they have been window-dressing?