
Irregular verb: forget - forgot - forgotten
Simple form | V-ing form | 
| I may forget you may forget she may forget we may forget you may forget they may forget  | I may be forgetting you may be forgetting she may be forgetting we may be forgetting you may be forgetting they may be forgetting  | 
Perfect | V-ing perfect | 
| I may have forgotten you may have forgotten she may have forgotten we may have forgotten you may have forgotten they may have forgotten  | I may have been forgetting you may have been forgetting she may have been forgetting we may have been forgetting you may have been forgetting they may have been forgetting  | 
Simple form | V-ing form | 
| I mayn't forget you mayn't forget she mayn't forget we mayn't forget you mayn't forget they mayn't forget  | I mayn't be forgetting you mayn't be forgetting she mayn't be forgetting we mayn't be forgetting you mayn't be forgetting they mayn't be forgetting  | 
Perfect | V-ing perfect | 
| I mayn't have forgotten you mayn't have forgotten she mayn't have forgotten we mayn't have forgotten you mayn't have forgotten they mayn't have forgotten  | I mayn't have been forgetting you mayn't have been forgetting she mayn't have been forgetting we mayn't have been forgetting you mayn't have been forgetting they mayn't have been forgetting  | 
Simple form | V-ing form | 
| may I forget? may you forget? may she forget? may we forget? may you forget? may they forget?  | may I be forgetting? may you be forgetting? may she be forgetting? may we be forgetting? may you be forgetting? may they be forgetting?  | 
Perfect | V-ing perfect | 
| may I have forgotten? may you have forgotten? may she have forgotten? may we have forgotten? may you have forgotten? may they have forgotten?  | may I have been forgetting? may you have been forgetting? may she have been forgetting? may we have been forgetting? may you have been forgetting? may they have been forgetting?  | 
Simple form | V-ing form | 
| mayn't I forget? mayn't you forget? mayn't she forget? mayn't we forget? mayn't you forget? mayn't they forget?  | mayn't I be forgetting? mayn't you be forgetting? mayn't she be forgetting? mayn't we be forgetting? mayn't you be forgetting? mayn't they be forgetting?  | 
Perfect | V-ing perfect | 
| mayn't I have forgotten? mayn't you have forgotten? mayn't she have forgotten? mayn't we have forgotten? mayn't you have forgotten? mayn't they have forgotten?  | mayn't I have been forgetting? mayn't you have been forgetting? mayn't she have been forgetting? mayn't we have been forgetting? mayn't you have been forgetting? mayn't they have been forgetting?  |