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