English verb conjugation
MUST CROSS-REACT

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

Affirmation

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