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