Regular verb: gross - grossed - grossed
Simple form | V-ing form |
I must gross you must gross he must gross we must gross you must gross they must gross | I must be grossing you must be grossing he must be grossing we must be grossing you must be grossing they must be grossing |
Perfect | V-ing perfect |
I must have grossed you must have grossed he must have grossed we must have grossed you must have grossed they must have grossed | I must have been grossing you must have been grossing he must have been grossing we must have been grossing you must have been grossing they must have been grossing |
Simple form | V-ing form |
I must not gross you must not gross he must not gross we must not gross you must not gross they must not gross | I must not be grossing you must not be grossing he must not be grossing we must not be grossing you must not be grossing they must not be grossing |
Perfect | V-ing perfect |
I must not have grossed you must not have grossed he must not have grossed we must not have grossed you must not have grossed they must not have grossed | I must not have been grossing you must not have been grossing he must not have been grossing we must not have been grossing you must not have been grossing they must not have been grossing |
Simple form | V-ing form |
must I gross? must you gross? must he gross? must we gross? must you gross? must they gross? | must I be grossing? must you be grossing? must he be grossing? must we be grossing? must you be grossing? must they be grossing? |
Perfect | V-ing perfect |
must I have grossed? must you have grossed? must he have grossed? must we have grossed? must you have grossed? must they have grossed? | must I have been grossing? must you have been grossing? must he have been grossing? must we have been grossing? must you have been grossing? must they have been grossing? |
Simple form | V-ing form |
must I not gross? must you not gross? must he not gross? must we not gross? must you not gross? must they not gross? | must I not be grossing? must you not be grossing? must he not be grossing? must we not be grossing? must you not be grossing? must they not be grossing? |
Perfect | V-ing perfect |
must I not have grossed? must you not have grossed? must he not have grossed? must we not have grossed? must you not have grossed? must they not have grossed? | must I not have been grossing? must you not have been grossing? must he not have been grossing? must we not have been grossing? must you not have been grossing? must they not have been grossing? |