I must trap you must trap he must trap we must trap you must trap they must trap
V-ing form
I must be trapping you must be trapping he must be trapping we must be trapping you must be trapping they must be trapping
Perfect
I must have trapped you must have trapped he must have trapped we must have trapped you must have trapped they must have trapped
V-ing perfect
I must have been trapping you must have been trapping he must have been trapping we must have been trapping you must have been trapping they must have been trapping
Negation
Simple form
I must not trap you must not trap he must not trap we must not trap you must not trap they must not trap
V-ing form
I must not be trapping you must not be trapping he must not be trapping we must not be trapping you must not be trapping they must not be trapping
Perfect
I must not have trapped you must not have trapped he must not have trapped we must not have trapped you must not have trapped they must not have trapped
V-ing perfect
I must not have been trapping you must not have been trapping he must not have been trapping we must not have been trapping you must not have been trapping they must not have been trapping
Interrogative form
Simple form
must I trap? must you trap? must he trap? must we trap? must you trap? must they trap?
V-ing form
must I be trapping? must you be trapping? must he be trapping? must we be trapping? must you be trapping? must they be trapping?
Perfect
must I have trapped? must you have trapped? must he have trapped? must we have trapped? must you have trapped? must they have trapped?
V-ing perfect
must I have been trapping? must you have been trapping? must he have been trapping? must we have been trapping? must you have been trapping? must they have been trapping?
Interro-negative form
Simple form
must I not trap? must you not trap? must he not trap? must we not trap? must you not trap? must they not trap?
V-ing form
must I not be trapping? must you not be trapping? must he not be trapping? must we not be trapping? must you not be trapping? must they not be trapping?
Perfect
must I not have trapped? must you not have trapped? must he not have trapped? must we not have trapped? must you not have trapped? must they not have trapped?
V-ing perfect
must I not have been trapping? must you not have been trapping? must he not have been trapping? must we not have been trapping? must you not have been trapping? must they not have been trapping?