I may shake you may shake she may shake we may shake you may shake they may shake
V-ing form
I may be shaking you may be shaking she may be shaking we may be shaking you may be shaking they may be shaking
Perfect
I may have shaken you may have shaken she 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 she 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 she 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 she 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 she 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 she 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 she shake? may we shake? may you shake? may they shake?
V-ing form
may I be shaking? may you be shaking? may she be shaking? may we be shaking? may you be shaking? may they be shaking?
Perfect
may I have shaken? may you have shaken? may she 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 she 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 she 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 she 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 she 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 she have been shaking? mayn't we have been shaking? mayn't you have been shaking? mayn't they have been shaking?