I must merchandise you must merchandise he must merchandise we must merchandise you must merchandise they must merchandise
V-ing form
I must be merchandising you must be merchandising he must be merchandising we must be merchandising you must be merchandising they must be merchandising
Perfect
I must have merchandised you must have merchandised he must have merchandised we must have merchandised you must have merchandised they must have merchandised
V-ing perfect
I must have been merchandising you must have been merchandising he must have been merchandising we must have been merchandising you must have been merchandising they must have been merchandising
Negation
Simple form
I must not merchandise you must not merchandise he must not merchandise we must not merchandise you must not merchandise they must not merchandise
V-ing form
I must not be merchandising you must not be merchandising he must not be merchandising we must not be merchandising you must not be merchandising they must not be merchandising
Perfect
I must not have merchandised you must not have merchandised he must not have merchandised we must not have merchandised you must not have merchandised they must not have merchandised
V-ing perfect
I must not have been merchandising you must not have been merchandising he must not have been merchandising we must not have been merchandising you must not have been merchandising they must not have been merchandising
Interrogative form
Simple form
must I merchandise? must you merchandise? must he merchandise? must we merchandise? must you merchandise? must they merchandise?
V-ing form
must I be merchandising? must you be merchandising? must he be merchandising? must we be merchandising? must you be merchandising? must they be merchandising?
Perfect
must I have merchandised? must you have merchandised? must he have merchandised? must we have merchandised? must you have merchandised? must they have merchandised?
V-ing perfect
must I have been merchandising? must you have been merchandising? must he have been merchandising? must we have been merchandising? must you have been merchandising? must they have been merchandising?
Interro-negative form
Simple form
must I not merchandise? must you not merchandise? must he not merchandise? must we not merchandise? must you not merchandise? must they not merchandise?
V-ing form
must I not be merchandising? must you not be merchandising? must he not be merchandising? must we not be merchandising? must you not be merchandising? must they not be merchandising?
Perfect
must I not have merchandised? must you not have merchandised? must he not have merchandised? must we not have merchandised? must you not have merchandised? must they not have merchandised?
V-ing perfect
must I not have been merchandising? must you not have been merchandising? must he not have been merchandising? must we not have been merchandising? must you not have been merchandising? must they not have been merchandising?