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