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