must cross-question
Regular verb: cross-question - cross-questioned- cross-questioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cross-question
you must cross-question
she must cross-question
we must cross-question
you must cross-question
they must cross-question 	I must be cross-questioning
you must be cross-questioning
she must be cross-questioning
we must be cross-questioning
you must be cross-questioning
they must be cross-questioning	I must have cross-questioned
you must have cross-questioned
she must have cross-questioned
we must have cross-questioned
you must have cross-questioned
they must have cross-questioned	I must have been cross-questioning
you must have been cross-questioning
she must have been cross-questioning
we must have been cross-questioning
you must have been cross-questioning
they must have been cross-questioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not cross-question
you must not cross-question
she must not cross-question
we must not cross-question
you must not cross-question
they must not cross-question 	I must not be cross-questioning
you must not be cross-questioning
she must not be cross-questioning
we must not be cross-questioning
you must not be cross-questioning
they must not be cross-questioning	I must not have cross-questioned
you must not have cross-questioned
she must not have cross-questioned
we must not have cross-questioned
you must not have cross-questioned
they must not have cross-questioned	I must not have been cross-questioning
you must not have been cross-questioning
she must not have been cross-questioning
we must not have been cross-questioning
you must not have been cross-questioning
they must not have been cross-questioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I cross-question?
must you cross-question?
must she cross-question?
must we cross-question?
must you cross-question?
must they cross-question? 	must I be cross-questioning?
must you be cross-questioning?
must she be cross-questioning?
must we be cross-questioning?
must you be cross-questioning?
must they be cross-questioning? 	must I have cross-questioned?
must you have cross-questioned?
must she have cross-questioned?
must we have cross-questioned?
must you have cross-questioned?
must they have cross-questioned? 	must I have been cross-questioning?
must you have been cross-questioning?
must she have been cross-questioning?
must we have been cross-questioning?
must you have been cross-questioning?
must they have been cross-questioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not cross-question?
must you not cross-question?
must she not cross-question?
must we not cross-question?
must you not cross-question?
must they not cross-question? 	must I not be cross-questioning?
must you not be cross-questioning?
must she not be cross-questioning?
must we not be cross-questioning?
must you not be cross-questioning?
must they not be cross-questioning? 	must I not have cross-questioned?
must you not have cross-questioned?
must she not have cross-questioned?
must we not have cross-questioned?
must you not have cross-questioned?
must they not have cross-questioned? 	must I not have been cross-questioning?
must you not have been cross-questioning?
must she not have been cross-questioning?
must we not have been cross-questioning?
must you not have been cross-questioning?
must they not have been cross-questioning?