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