I must roadblock you must roadblock he must roadblock we must roadblock you must roadblock they must roadblock
V-ing form
I must be roadblocking you must be roadblocking he must be roadblocking we must be roadblocking you must be roadblocking they must be roadblocking
Perfect
I must have roadblocked you must have roadblocked he must have roadblocked we must have roadblocked you must have roadblocked they must have roadblocked
V-ing perfect
I must have been roadblocking you must have been roadblocking he must have been roadblocking we must have been roadblocking you must have been roadblocking they must have been roadblocking
Negation
Simple form
I must not roadblock you must not roadblock he must not roadblock we must not roadblock you must not roadblock they must not roadblock
V-ing form
I must not be roadblocking you must not be roadblocking he must not be roadblocking we must not be roadblocking you must not be roadblocking they must not be roadblocking
Perfect
I must not have roadblocked you must not have roadblocked he must not have roadblocked we must not have roadblocked you must not have roadblocked they must not have roadblocked
V-ing perfect
I must not have been roadblocking you must not have been roadblocking he must not have been roadblocking we must not have been roadblocking you must not have been roadblocking they must not have been roadblocking
Interrogative form
Simple form
must I roadblock? must you roadblock? must he roadblock? must we roadblock? must you roadblock? must they roadblock?
V-ing form
must I be roadblocking? must you be roadblocking? must he be roadblocking? must we be roadblocking? must you be roadblocking? must they be roadblocking?
Perfect
must I have roadblocked? must you have roadblocked? must he have roadblocked? must we have roadblocked? must you have roadblocked? must they have roadblocked?
V-ing perfect
must I have been roadblocking? must you have been roadblocking? must he have been roadblocking? must we have been roadblocking? must you have been roadblocking? must they have been roadblocking?
Interro-negative form
Simple form
must I not roadblock? must you not roadblock? must he not roadblock? must we not roadblock? must you not roadblock? must they not roadblock?
V-ing form
must I not be roadblocking? must you not be roadblocking? must he not be roadblocking? must we not be roadblocking? must you not be roadblocking? must they not be roadblocking?
Perfect
must I not have roadblocked? must you not have roadblocked? must he not have roadblocked? must we not have roadblocked? must you not have roadblocked? must they not have roadblocked?
V-ing perfect
must I not have been roadblocking? must you not have been roadblocking? must he not have been roadblocking? must we not have been roadblocking? must you not have been roadblocking? must they not have been roadblocking?