must double-cross
Regular verb: double-cross - double-crossed- double-crossed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must double-cross
you must double-cross
she must double-cross
we must double-cross
you must double-cross
they must double-cross 	I must be double-crossing
you must be double-crossing
she must be double-crossing
we must be double-crossing
you must be double-crossing
they must be double-crossing	I must have double-crossed
you must have double-crossed
she must have double-crossed
we must have double-crossed
you must have double-crossed
they must have double-crossed	I must have been double-crossing
you must have been double-crossing
she must have been double-crossing
we must have been double-crossing
you must have been double-crossing
they must have been double-crossing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't double-cross
you mustn't double-cross
she mustn't double-cross
we mustn't double-cross
you mustn't double-cross
they mustn't double-cross 	I mustn't be double-crossing
you mustn't be double-crossing
she mustn't be double-crossing
we mustn't be double-crossing
you mustn't be double-crossing
they mustn't be double-crossing	I mustn't have double-crossed
you mustn't have double-crossed
she mustn't have double-crossed
we mustn't have double-crossed
you mustn't have double-crossed
they mustn't have double-crossed	I mustn't have been double-crossing
you mustn't have been double-crossing
she mustn't have been double-crossing
we mustn't have been double-crossing
you mustn't have been double-crossing
they mustn't have been double-crossing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I double-cross?
must you double-cross?
must she double-cross?
must we double-cross?
must you double-cross?
must they double-cross? 	must I be double-crossing?
must you be double-crossing?
must she be double-crossing?
must we be double-crossing?
must you be double-crossing?
must they be double-crossing? 	must I have double-crossed?
must you have double-crossed?
must she have double-crossed?
must we have double-crossed?
must you have double-crossed?
must they have double-crossed? 	must I have been double-crossing?
must you have been double-crossing?
must she have been double-crossing?
must we have been double-crossing?
must you have been double-crossing?
must they have been double-crossing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I double-cross?
mustn't you double-cross?
mustn't she double-cross?
mustn't we double-cross?
mustn't you double-cross?
mustn't they double-cross? 	mustn't I be double-crossing?
mustn't you be double-crossing?
mustn't she be double-crossing?
mustn't we be double-crossing?
mustn't you be double-crossing?
mustn't they be double-crossing? 	mustn't I have double-crossed?
mustn't you have double-crossed?
mustn't she have double-crossed?
mustn't we have double-crossed?
mustn't you have double-crossed?
mustn't they have double-crossed? 	mustn't I have been double-crossing?
mustn't you have been double-crossing?
mustn't she have been double-crossing?
mustn't we have been double-crossing?
mustn't you have been double-crossing?
mustn't they have been double-crossing?