
Verbo irregular: undo - undid - undone
Forma simple | Forma con V-ing | 
| I may undo you may undo he may undo we may undo you may undo they may undo  | I may be undoing you may be undoing he may be undoing we may be undoing you may be undoing they may be undoing  | 
Perfecto | Perfecto con V-ing | 
| I may have undone you may have undone he may have undone we may have undone you may have undone they may have undone  | I may have been undoing you may have been undoing he may have been undoing we may have been undoing you may have been undoing they may have been undoing  | 
Forma simple | Forma con V-ing | 
| I mayn't undo you mayn't undo he mayn't undo we mayn't undo you mayn't undo they mayn't undo  | I mayn't be undoing you mayn't be undoing he mayn't be undoing we mayn't be undoing you mayn't be undoing they mayn't be undoing  | 
Perfecto | Perfecto con V-ing | 
| I mayn't have undone you mayn't have undone he mayn't have undone we mayn't have undone you mayn't have undone they mayn't have undone  | I mayn't have been undoing you mayn't have been undoing he mayn't have been undoing we mayn't have been undoing you mayn't have been undoing they mayn't have been undoing  | 
Forma simple | Forma con V-ing | 
| may I undo? may you undo? may he undo? may we undo? may you undo? may they undo?  | may I be undoing? may you be undoing? may he be undoing? may we be undoing? may you be undoing? may they be undoing?  | 
Perfecto | Perfecto con V-ing | 
| may I have undone? may you have undone? may he have undone? may we have undone? may you have undone? may they have undone?  | may I have been undoing? may you have been undoing? may he have been undoing? may we have been undoing? may you have been undoing? may they have been undoing?  | 
Forma simple | Forma con V-ing | 
| mayn't I undo? mayn't you undo? mayn't he undo? mayn't we undo? mayn't you undo? mayn't they undo?  | mayn't I be undoing? mayn't you be undoing? mayn't he be undoing? mayn't we be undoing? mayn't you be undoing? mayn't they be undoing?  | 
Perfecto | Perfecto con V-ing | 
| mayn't I have undone? mayn't you have undone? mayn't he have undone? mayn't we have undone? mayn't you have undone? mayn't they have undone?  | mayn't I have been undoing? mayn't you have been undoing? mayn't he have been undoing? mayn't we have been undoing? mayn't you have been undoing? mayn't they have been undoing?  |