
Verbo regular: fell - felled - felled
Forma simple | Forma con V-ing | 
| I may fell you may fell she may fell we may fell you may fell they may fell  | I may be felling you may be felling she may be felling we may be felling you may be felling they may be felling  | 
Perfecto | Perfecto con V-ing | 
| I may have felled you may have felled she may have felled we may have felled you may have felled they may have felled  | I may have been felling you may have been felling she may have been felling we may have been felling you may have been felling they may have been felling  | 
Forma simple | Forma con V-ing | 
| I mayn't fell you mayn't fell she mayn't fell we mayn't fell you mayn't fell they mayn't fell  | I mayn't be felling you mayn't be felling she mayn't be felling we mayn't be felling you mayn't be felling they mayn't be felling  | 
Perfecto | Perfecto con V-ing | 
| I mayn't have felled you mayn't have felled she mayn't have felled we mayn't have felled you mayn't have felled they mayn't have felled  | I mayn't have been felling you mayn't have been felling she mayn't have been felling we mayn't have been felling you mayn't have been felling they mayn't have been felling  | 
Forma simple | Forma con V-ing | 
| may I fell? may you fell? may she fell? may we fell? may you fell? may they fell?  | may I be felling? may you be felling? may she be felling? may we be felling? may you be felling? may they be felling?  | 
Perfecto | Perfecto con V-ing | 
| may I have felled? may you have felled? may she have felled? may we have felled? may you have felled? may they have felled?  | may I have been felling? may you have been felling? may she have been felling? may we have been felling? may you have been felling? may they have been felling?  | 
Forma simple | Forma con V-ing | 
| mayn't I fell? mayn't you fell? mayn't she fell? mayn't we fell? mayn't you fell? mayn't they fell?  | mayn't I be felling? mayn't you be felling? mayn't she be felling? mayn't we be felling? mayn't you be felling? mayn't they be felling?  | 
Perfecto | Perfecto con V-ing | 
| mayn't I have felled? mayn't you have felled? mayn't she have felled? mayn't we have felled? mayn't you have felled? mayn't they have felled?  | mayn't I have been felling? mayn't you have been felling? mayn't she have been felling? mayn't we have been felling? mayn't you have been felling? mayn't they have been felling?  |