
Verbo regular: welcome - welcomed - welcomed
Forma simple | Forma con V-ing | 
| I must welcome you must welcome he must welcome we must welcome you must welcome they must welcome  | I must be welcoming you must be welcoming he must be welcoming we must be welcoming you must be welcoming they must be welcoming  | 
Perfecto | Perfecto con V-ing | 
| I must have welcomed you must have welcomed he must have welcomed we must have welcomed you must have welcomed they must have welcomed  | I must have been welcoming you must have been welcoming he must have been welcoming we must have been welcoming you must have been welcoming they must have been welcoming  | 
Forma simple | Forma con V-ing | 
| I mustn't welcome you mustn't welcome he mustn't welcome we mustn't welcome you mustn't welcome they mustn't welcome  | I mustn't be welcoming you mustn't be welcoming he mustn't be welcoming we mustn't be welcoming you mustn't be welcoming they mustn't be welcoming  | 
Perfecto | Perfecto con V-ing | 
| I mustn't have welcomed you mustn't have welcomed he mustn't have welcomed we mustn't have welcomed you mustn't have welcomed they mustn't have welcomed  | I mustn't have been welcoming you mustn't have been welcoming he mustn't have been welcoming we mustn't have been welcoming you mustn't have been welcoming they mustn't have been welcoming  | 
Forma simple | Forma con V-ing | 
| must I welcome? must you welcome? must he welcome? must we welcome? must you welcome? must they welcome?  | must I be welcoming? must you be welcoming? must he be welcoming? must we be welcoming? must you be welcoming? must they be welcoming?  | 
Perfecto | Perfecto con V-ing | 
| must I have welcomed? must you have welcomed? must he have welcomed? must we have welcomed? must you have welcomed? must they have welcomed?  | must I have been welcoming? must you have been welcoming? must he have been welcoming? must we have been welcoming? must you have been welcoming? must they have been welcoming?  | 
Forma simple | Forma con V-ing | 
| mustn't I welcome? mustn't you welcome? mustn't he welcome? mustn't we welcome? mustn't you welcome? mustn't they welcome?  | mustn't I be welcoming? mustn't you be welcoming? mustn't he be welcoming? mustn't we be welcoming? mustn't you be welcoming? mustn't they be welcoming?  | 
Perfecto | Perfecto con V-ing | 
| mustn't I have welcomed? mustn't you have welcomed? mustn't he have welcomed? mustn't we have welcomed? mustn't you have welcomed? mustn't they have welcomed?  | mustn't I have been welcoming? mustn't you have been welcoming? mustn't he have been welcoming? mustn't we have been welcoming? mustn't you have been welcoming? mustn't they have been welcoming?  |