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