must cross
Verbo regolare: cross - crossed- crossed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must cross
you must cross
he must cross
we must cross
you must cross
they must cross 	I must be crossing
you must be crossing
he must be crossing
we must be crossing
you must be crossing
they must be crossing	I must have crossed
you must have crossed
he must have crossed
we must have crossed
you must have crossed
they must have crossed	I must have been crossing
you must have been crossing
he must have been crossing
we must have been crossing
you must have been crossing
they must have been crossing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't cross
you mustn't cross
he mustn't cross
we mustn't cross
you mustn't cross
they mustn't cross 	I mustn't be crossing
you mustn't be crossing
he mustn't be crossing
we mustn't be crossing
you mustn't be crossing
they mustn't be crossing	I mustn't have crossed
you mustn't have crossed
he mustn't have crossed
we mustn't have crossed
you mustn't have crossed
they mustn't have crossed	I mustn't have been crossing
you mustn't have been crossing
he mustn't have been crossing
we mustn't have been crossing
you mustn't have been crossing
they mustn't have been crossing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I cross?
must you cross?
must he cross?
must we cross?
must you cross?
must they cross? 	must I be crossing?
must you be crossing?
must he be crossing?
must we be crossing?
must you be crossing?
must they be crossing? 	must I have crossed?
must you have crossed?
must he have crossed?
must we have crossed?
must you have crossed?
must they have crossed? 	must I have been crossing?
must you have been crossing?
must he have been crossing?
must we have been crossing?
must you have been crossing?
must they have been crossing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I cross?
mustn't you cross?
mustn't he cross?
mustn't we cross?
mustn't you cross?
mustn't they cross? 	mustn't I be crossing?
mustn't you be crossing?
mustn't he be crossing?
mustn't we be crossing?
mustn't you be crossing?
mustn't they be crossing? 	mustn't I have crossed?
mustn't you have crossed?
mustn't he have crossed?
mustn't we have crossed?
mustn't you have crossed?
mustn't they have crossed? 	mustn't I have been crossing?
mustn't you have been crossing?
mustn't he have been crossing?
mustn't we have been crossing?
mustn't you have been crossing?
mustn't they have been crossing?