I may clatter you may clatter he may clatter we may clatter you may clatter they may clatter
V-ing form
I may be clattering you may be clattering he may be clattering we may be clattering you may be clattering they may be clattering
Perfect
I may have clattered you may have clattered he 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 he may have been clattering we may have been clattering you may have been clattering they may have been clattering
Negation
Simple form
I may not clatter you may not clatter he may not clatter we may not clatter you may not clatter they may not clatter
V-ing form
I may not be clattering you may not be clattering he may not be clattering we may not be clattering you may not be clattering they may not be clattering
Perfect
I may not have clattered you may not have clattered he may not have clattered we may not have clattered you may not have clattered they may not have clattered
V-ing perfect
I may not have been clattering you may not have been clattering he may not have been clattering we may not have been clattering you may not have been clattering they may not have been clattering
Interrogative form
Simple form
may I clatter? may you clatter? may he clatter? may we clatter? may you clatter? may they clatter?
V-ing form
may I be clattering? may you be clattering? may he be clattering? may we be clattering? may you be clattering? may they be clattering?
Perfect
may I have clattered? may you have clattered? may he 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 he have been clattering? may we have been clattering? may you have been clattering? may they have been clattering?
Interro-negative form
Simple form
may I not clatter? may you not clatter? may he not clatter? may we not clatter? may you not clatter? may they not clatter?
V-ing form
may I not be clattering? may you not be clattering? may he not be clattering? may we not be clattering? may you not be clattering? may they not be clattering?
Perfect
may I not have clattered? may you not have clattered? may he not have clattered? may we not have clattered? may you not have clattered? may they not have clattered?
V-ing perfect
may I not have been clattering? may you not have been clattering? may he not have been clattering? may we not have been clattering? may you not have been clattering? may they not have been clattering?