I may appall you may appall she may appall we may appall you may appall they may appall
V-ing form
I may be appalling you may be appalling she may be appalling we may be appalling you may be appalling they may be appalling
Perfect
I may have appalled you may have appalled she may have appalled we may have appalled you may have appalled they may have appalled
V-ing perfect
I may have been appalling you may have been appalling she may have been appalling we may have been appalling you may have been appalling they may have been appalling
Negation
Simple form
I mayn't appall you mayn't appall she mayn't appall we mayn't appall you mayn't appall they mayn't appall
V-ing form
I mayn't be appalling you mayn't be appalling she mayn't be appalling we mayn't be appalling you mayn't be appalling they mayn't be appalling
Perfect
I mayn't have appalled you mayn't have appalled she mayn't have appalled we mayn't have appalled you mayn't have appalled they mayn't have appalled
V-ing perfect
I mayn't have been appalling you mayn't have been appalling she mayn't have been appalling we mayn't have been appalling you mayn't have been appalling they mayn't have been appalling
Interrogative form
Simple form
may I appall? may you appall? may she appall? may we appall? may you appall? may they appall?
V-ing form
may I be appalling? may you be appalling? may she be appalling? may we be appalling? may you be appalling? may they be appalling?
Perfect
may I have appalled? may you have appalled? may she have appalled? may we have appalled? may you have appalled? may they have appalled?
V-ing perfect
may I have been appalling? may you have been appalling? may she have been appalling? may we have been appalling? may you have been appalling? may they have been appalling?
Interro-negative form
Simple form
mayn't I appall? mayn't you appall? mayn't she appall? mayn't we appall? mayn't you appall? mayn't they appall?
V-ing form
mayn't I be appalling? mayn't you be appalling? mayn't she be appalling? mayn't we be appalling? mayn't you be appalling? mayn't they be appalling?
Perfect
mayn't I have appalled? mayn't you have appalled? mayn't she have appalled? mayn't we have appalled? mayn't you have appalled? mayn't they have appalled?
V-ing perfect
mayn't I have been appalling? mayn't you have been appalling? mayn't she have been appalling? mayn't we have been appalling? mayn't you have been appalling? mayn't they have been appalling?