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