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