must cross-react
Regular verb: cross-react - cross-reacted- cross-reacted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cross-react
you must cross-react
he must cross-react
we must cross-react
you must cross-react
they must cross-react 	I must be cross-reacting
you must be cross-reacting
he must be cross-reacting
we must be cross-reacting
you must be cross-reacting
they must be cross-reacting	I must have cross-reacted
you must have cross-reacted
he must have cross-reacted
we must have cross-reacted
you must have cross-reacted
they must have cross-reacted	I must have been cross-reacting
you must have been cross-reacting
he must have been cross-reacting
we must have been cross-reacting
you must have been cross-reacting
they must have been cross-reacting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not cross-react
you must not cross-react
he must not cross-react
we must not cross-react
you must not cross-react
they must not cross-react 	I must not be cross-reacting
you must not be cross-reacting
he must not be cross-reacting
we must not be cross-reacting
you must not be cross-reacting
they must not be cross-reacting	I must not have cross-reacted
you must not have cross-reacted
he must not have cross-reacted
we must not have cross-reacted
you must not have cross-reacted
they must not have cross-reacted	I must not have been cross-reacting
you must not have been cross-reacting
he must not have been cross-reacting
we must not have been cross-reacting
you must not have been cross-reacting
they must not have been cross-reacting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I cross-react?
must you cross-react?
must he cross-react?
must we cross-react?
must you cross-react?
must they cross-react? 	must I be cross-reacting?
must you be cross-reacting?
must he be cross-reacting?
must we be cross-reacting?
must you be cross-reacting?
must they be cross-reacting? 	must I have cross-reacted?
must you have cross-reacted?
must he have cross-reacted?
must we have cross-reacted?
must you have cross-reacted?
must they have cross-reacted? 	must I have been cross-reacting?
must you have been cross-reacting?
must he have been cross-reacting?
must we have been cross-reacting?
must you have been cross-reacting?
must they have been cross-reacting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not cross-react?
must you not cross-react?
must he not cross-react?
must we not cross-react?
must you not cross-react?
must they not cross-react? 	must I not be cross-reacting?
must you not be cross-reacting?
must he not be cross-reacting?
must we not be cross-reacting?
must you not be cross-reacting?
must they not be cross-reacting? 	must I not have cross-reacted?
must you not have cross-reacted?
must he not have cross-reacted?
must we not have cross-reacted?
must you not have cross-reacted?
must they not have cross-reacted? 	must I not have been cross-reacting?
must you not have been cross-reacting?
must he not have been cross-reacting?
must we not have been cross-reacting?
must you not have been cross-reacting?
must they not have been cross-reacting?