I must shock you must shock he must shock we must shock you must shock they must shock
V-ing form
I must be shocking you must be shocking he must be shocking we must be shocking you must be shocking they must be shocking
Perfect
I must have shocked you must have shocked he must have shocked we must have shocked you must have shocked they must have shocked
V-ing perfect
I must have been shocking you must have been shocking he must have been shocking we must have been shocking you must have been shocking they must have been shocking
Negation
Simple form
I must not shock you must not shock he must not shock we must not shock you must not shock they must not shock
V-ing form
I must not be shocking you must not be shocking he must not be shocking we must not be shocking you must not be shocking they must not be shocking
Perfect
I must not have shocked you must not have shocked he must not have shocked we must not have shocked you must not have shocked they must not have shocked
V-ing perfect
I must not have been shocking you must not have been shocking he must not have been shocking we must not have been shocking you must not have been shocking they must not have been shocking
Interrogative form
Simple form
must I shock? must you shock? must he shock? must we shock? must you shock? must they shock?
V-ing form
must I be shocking? must you be shocking? must he be shocking? must we be shocking? must you be shocking? must they be shocking?
Perfect
must I have shocked? must you have shocked? must he have shocked? must we have shocked? must you have shocked? must they have shocked?
V-ing perfect
must I have been shocking? must you have been shocking? must he have been shocking? must we have been shocking? must you have been shocking? must they have been shocking?
Interro-negative form
Simple form
must I not shock? must you not shock? must he not shock? must we not shock? must you not shock? must they not shock?
V-ing form
must I not be shocking? must you not be shocking? must he not be shocking? must we not be shocking? must you not be shocking? must they not be shocking?
Perfect
must I not have shocked? must you not have shocked? must he not have shocked? must we not have shocked? must you not have shocked? must they not have shocked?
V-ing perfect
must I not have been shocking? must you not have been shocking? must he not have been shocking? must we not have been shocking? must you not have been shocking? must they not have been shocking?