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