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