I must tape you must tape he must tape we must tape you must tape they must tape
V-ing form
I must be taping you must be taping he must be taping we must be taping you must be taping they must be taping
Perfect
I must have taped you must have taped he must have taped we must have taped you must have taped they must have taped
V-ing perfect
I must have been taping you must have been taping he must have been taping we must have been taping you must have been taping they must have been taping
Negation
Simple form
I must not tape you must not tape he must not tape we must not tape you must not tape they must not tape
V-ing form
I must not be taping you must not be taping he must not be taping we must not be taping you must not be taping they must not be taping
Perfect
I must not have taped you must not have taped he must not have taped we must not have taped you must not have taped they must not have taped
V-ing perfect
I must not have been taping you must not have been taping he must not have been taping we must not have been taping you must not have been taping they must not have been taping
Interrogative form
Simple form
must I tape? must you tape? must he tape? must we tape? must you tape? must they tape?
V-ing form
must I be taping? must you be taping? must he be taping? must we be taping? must you be taping? must they be taping?
Perfect
must I have taped? must you have taped? must he have taped? must we have taped? must you have taped? must they have taped?
V-ing perfect
must I have been taping? must you have been taping? must he have been taping? must we have been taping? must you have been taping? must they have been taping?
Interro-negative form
Simple form
must I not tape? must you not tape? must he not tape? must we not tape? must you not tape? must they not tape?
V-ing form
must I not be taping? must you not be taping? must he not be taping? must we not be taping? must you not be taping? must they not be taping?
Perfect
must I not have taped? must you not have taped? must he not have taped? must we not have taped? must you not have taped? must they not have taped?
V-ing perfect
must I not have been taping? must you not have been taping? must he not have been taping? must we not have been taping? must you not have been taping? must they not have been taping?