
Verbo irregular: swell - swelled - swelled, swollen
Forma simple | Forma con V-ing | 
| I must swell you must swell she must swell we must swell you must swell they must swell  | I must be swelling you must be swelling she must be swelling we must be swelling you must be swelling they must be swelling  | 
Perfecto | Perfecto con V-ing | 
| I must have swelled, swollen you must have swelled, swollen she must have swelled, swollen we must have swelled, swollen you must have swelled, swollen they must have swelled, swollen  | I must have been swelling you must have been swelling she must have been swelling we must have been swelling you must have been swelling they must have been swelling  | 
Forma simple | Forma con V-ing | 
| I mustn't swell you mustn't swell she mustn't swell we mustn't swell you mustn't swell they mustn't swell  | I mustn't be swelling you mustn't be swelling she mustn't be swelling we mustn't be swelling you mustn't be swelling they mustn't be swelling  | 
Perfecto | Perfecto con V-ing | 
| I mustn't have swelled, swollen you mustn't have swelled, swollen she mustn't have swelled, swollen we mustn't have swelled, swollen you mustn't have swelled, swollen they mustn't have swelled, swollen  | I mustn't have been swelling you mustn't have been swelling she mustn't have been swelling we mustn't have been swelling you mustn't have been swelling they mustn't have been swelling  | 
Forma simple | Forma con V-ing | 
| must I swell? must you swell? must she swell? must we swell? must you swell? must they swell?  | must I be swelling? must you be swelling? must she be swelling? must we be swelling? must you be swelling? must they be swelling?  | 
Perfecto | Perfecto con V-ing | 
| must I have swelled, swollen? must you have swelled, swollen? must she have swelled, swollen? must we have swelled, swollen? must you have swelled, swollen? must they have swelled, swollen?  | must I have been swelling? must you have been swelling? must she have been swelling? must we have been swelling? must you have been swelling? must they have been swelling?  | 
Forma simple | Forma con V-ing | 
| mustn't I swell? mustn't you swell? mustn't she swell? mustn't we swell? mustn't you swell? mustn't they swell?  | mustn't I be swelling? mustn't you be swelling? mustn't she be swelling? mustn't we be swelling? mustn't you be swelling? mustn't they be swelling?  | 
Perfecto | Perfecto con V-ing | 
| mustn't I have swelled, swollen? mustn't you have swelled, swollen? mustn't she have swelled, swollen? mustn't we have swelled, swollen? mustn't you have swelled, swollen? mustn't they have swelled, swollen?  | mustn't I have been swelling? mustn't you have been swelling? mustn't she have been swelling? mustn't we have been swelling? mustn't you have been swelling? mustn't they have been swelling?  |