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