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