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