I must botch you must botch he must botch we must botch you must botch they must botch
V-ing form
I must be botching you must be botching he must be botching we must be botching you must be botching they must be botching
Perfect
I must have botched you must have botched he must have botched we must have botched you must have botched they must have botched
V-ing perfect
I must have been botching you must have been botching he must have been botching we must have been botching you must have been botching they must have been botching
Negation
Simple form
I must not botch you must not botch he must not botch we must not botch you must not botch they must not botch
V-ing form
I must not be botching you must not be botching he must not be botching we must not be botching you must not be botching they must not be botching
Perfect
I must not have botched you must not have botched he must not have botched we must not have botched you must not have botched they must not have botched
V-ing perfect
I must not have been botching you must not have been botching he must not have been botching we must not have been botching you must not have been botching they must not have been botching
Interrogative form
Simple form
must I botch? must you botch? must he botch? must we botch? must you botch? must they botch?
V-ing form
must I be botching? must you be botching? must he be botching? must we be botching? must you be botching? must they be botching?
Perfect
must I have botched? must you have botched? must he have botched? must we have botched? must you have botched? must they have botched?
V-ing perfect
must I have been botching? must you have been botching? must he have been botching? must we have been botching? must you have been botching? must they have been botching?
Interro-negative form
Simple form
must I not botch? must you not botch? must he not botch? must we not botch? must you not botch? must they not botch?
V-ing form
must I not be botching? must you not be botching? must he not be botching? must we not be botching? must you not be botching? must they not be botching?
Perfect
must I not have botched? must you not have botched? must he not have botched? must we not have botched? must you not have botched? must they not have botched?
V-ing perfect
must I not have been botching? must you not have been botching? must he not have been botching? must we not have been botching? must you not have been botching? must they not have been botching?