
Verbo irregular: smell - smelled, smelt - smelled, smelt
Forma simple | Forma con V-ing | 
| I must smell you must smell she must smell we must smell you must smell they must smell  | I must be smelling you must be smelling she must be smelling we must be smelling you must be smelling they must be smelling  | 
Perfecto | Perfecto con V-ing | 
| I must have smelled, smelt you must have smelled, smelt she must have smelled, smelt we must have smelled, smelt you must have smelled, smelt they must have smelled, smelt  | I must have been smelling you must have been smelling she must have been smelling we must have been smelling you must have been smelling they must have been smelling  | 
Forma simple | Forma con V-ing | 
| I mustn't smell you mustn't smell she mustn't smell we mustn't smell you mustn't smell they mustn't smell  | I mustn't be smelling you mustn't be smelling she mustn't be smelling we mustn't be smelling you mustn't be smelling they mustn't be smelling  | 
Perfecto | Perfecto con V-ing | 
| I mustn't have smelled, smelt you mustn't have smelled, smelt she mustn't have smelled, smelt we mustn't have smelled, smelt you mustn't have smelled, smelt they mustn't have smelled, smelt  | I mustn't have been smelling you mustn't have been smelling she mustn't have been smelling we mustn't have been smelling you mustn't have been smelling they mustn't have been smelling  | 
Forma simple | Forma con V-ing | 
| must I smell? must you smell? must she smell? must we smell? must you smell? must they smell?  | must I be smelling? must you be smelling? must she be smelling? must we be smelling? must you be smelling? must they be smelling?  | 
Perfecto | Perfecto con V-ing | 
| must I have smelled, smelt? must you have smelled, smelt? must she have smelled, smelt? must we have smelled, smelt? must you have smelled, smelt? must they have smelled, smelt?  | must I have been smelling? must you have been smelling? must she have been smelling? must we have been smelling? must you have been smelling? must they have been smelling?  | 
Forma simple | Forma con V-ing | 
| mustn't I smell? mustn't you smell? mustn't she smell? mustn't we smell? mustn't you smell? mustn't they smell?  | mustn't I be smelling? mustn't you be smelling? mustn't she be smelling? mustn't we be smelling? mustn't you be smelling? mustn't they be smelling?  | 
Perfecto | Perfecto con V-ing | 
| mustn't I have smelled, smelt? mustn't you have smelled, smelt? mustn't she have smelled, smelt? mustn't we have smelled, smelt? mustn't you have smelled, smelt? mustn't they have smelled, smelt?  | mustn't I have been smelling? mustn't you have been smelling? mustn't she have been smelling? mustn't we have been smelling? mustn't you have been smelling? mustn't they have been smelling?  |