
Regular verb: hijack - hijacked - hijacked
Simple form | V-ing form | 
| I may hijack you may hijack she may hijack we may hijack you may hijack they may hijack  | I may be hijacking you may be hijacking she may be hijacking we may be hijacking you may be hijacking they may be hijacking  | 
Perfect | V-ing perfect | 
| I may have hijacked you may have hijacked she may have hijacked we may have hijacked you may have hijacked they may have hijacked  | I may have been hijacking you may have been hijacking she may have been hijacking we may have been hijacking you may have been hijacking they may have been hijacking  | 
Simple form | V-ing form | 
| I mayn't hijack you mayn't hijack she mayn't hijack we mayn't hijack you mayn't hijack they mayn't hijack  | I mayn't be hijacking you mayn't be hijacking she mayn't be hijacking we mayn't be hijacking you mayn't be hijacking they mayn't be hijacking  | 
Perfect | V-ing perfect | 
| I mayn't have hijacked you mayn't have hijacked she mayn't have hijacked we mayn't have hijacked you mayn't have hijacked they mayn't have hijacked  | I mayn't have been hijacking you mayn't have been hijacking she mayn't have been hijacking we mayn't have been hijacking you mayn't have been hijacking they mayn't have been hijacking  | 
Simple form | V-ing form | 
| may I hijack? may you hijack? may she hijack? may we hijack? may you hijack? may they hijack?  | may I be hijacking? may you be hijacking? may she be hijacking? may we be hijacking? may you be hijacking? may they be hijacking?  | 
Perfect | V-ing perfect | 
| may I have hijacked? may you have hijacked? may she have hijacked? may we have hijacked? may you have hijacked? may they have hijacked?  | may I have been hijacking? may you have been hijacking? may she have been hijacking? may we have been hijacking? may you have been hijacking? may they have been hijacking?  | 
Simple form | V-ing form | 
| mayn't I hijack? mayn't you hijack? mayn't she hijack? mayn't we hijack? mayn't you hijack? mayn't they hijack?  | mayn't I be hijacking? mayn't you be hijacking? mayn't she be hijacking? mayn't we be hijacking? mayn't you be hijacking? mayn't they be hijacking?  | 
Perfect | V-ing perfect | 
| mayn't I have hijacked? mayn't you have hijacked? mayn't she have hijacked? mayn't we have hijacked? mayn't you have hijacked? mayn't they have hijacked?  | mayn't I have been hijacking? mayn't you have been hijacking? mayn't she have been hijacking? mayn't we have been hijacking? mayn't you have been hijacking? mayn't they have been hijacking?  |