
Regular verb: continue - continued - continued
Simple form | V-ing form | 
| I must continue you must continue he must continue we must continue you must continue they must continue  | I must be continuing you must be continuing he must be continuing we must be continuing you must be continuing they must be continuing  | 
Perfect | V-ing perfect | 
| I must have continued you must have continued he must have continued we must have continued you must have continued they must have continued  | I must have been continuing you must have been continuing he must have been continuing we must have been continuing you must have been continuing they must have been continuing  | 
Simple form | V-ing form | 
| I mustn't continue you mustn't continue he mustn't continue we mustn't continue you mustn't continue they mustn't continue  | I mustn't be continuing you mustn't be continuing he mustn't be continuing we mustn't be continuing you mustn't be continuing they mustn't be continuing  | 
Perfect | V-ing perfect | 
| I mustn't have continued you mustn't have continued he mustn't have continued we mustn't have continued you mustn't have continued they mustn't have continued  | I mustn't have been continuing you mustn't have been continuing he mustn't have been continuing we mustn't have been continuing you mustn't have been continuing they mustn't have been continuing  | 
Simple form | V-ing form | 
| must I continue? must you continue? must he continue? must we continue? must you continue? must they continue?  | must I be continuing? must you be continuing? must he be continuing? must we be continuing? must you be continuing? must they be continuing?  | 
Perfect | V-ing perfect | 
| must I have continued? must you have continued? must he have continued? must we have continued? must you have continued? must they have continued?  | must I have been continuing? must you have been continuing? must he have been continuing? must we have been continuing? must you have been continuing? must they have been continuing?  | 
Simple form | V-ing form | 
| mustn't I continue? mustn't you continue? mustn't he continue? mustn't we continue? mustn't you continue? mustn't they continue?  | mustn't I be continuing? mustn't you be continuing? mustn't he be continuing? mustn't we be continuing? mustn't you be continuing? mustn't they be continuing?  | 
Perfect | V-ing perfect | 
| mustn't I have continued? mustn't you have continued? mustn't he have continued? mustn't we have continued? mustn't you have continued? mustn't they have continued?  | mustn't I have been continuing? mustn't you have been continuing? mustn't he have been continuing? mustn't we have been continuing? mustn't you have been continuing? mustn't they have been continuing?  |