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