must counterstep
Verbo regular: counterstep - countersteped- countersteped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must counterstep
you must counterstep
he must counterstep
we must counterstep
you must counterstep
they must counterstep 	I must be countersteping
you must be countersteping
he must be countersteping
we must be countersteping
you must be countersteping
they must be countersteping	I must have countersteped
you must have countersteped
he must have countersteped
we must have countersteped
you must have countersteped
they must have countersteped	I must have been countersteping
you must have been countersteping
he must have been countersteping
we must have been countersteping
you must have been countersteping
they must have been countersteping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't counterstep
you mustn't counterstep
he mustn't counterstep
we mustn't counterstep
you mustn't counterstep
they mustn't counterstep 	I mustn't be countersteping
you mustn't be countersteping
he mustn't be countersteping
we mustn't be countersteping
you mustn't be countersteping
they mustn't be countersteping	I mustn't have countersteped
you mustn't have countersteped
he mustn't have countersteped
we mustn't have countersteped
you mustn't have countersteped
they mustn't have countersteped	I mustn't have been countersteping
you mustn't have been countersteping
he mustn't have been countersteping
we mustn't have been countersteping
you mustn't have been countersteping
they mustn't have been countersteping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I counterstep?
must you counterstep?
must he counterstep?
must we counterstep?
must you counterstep?
must they counterstep? 	must I be countersteping?
must you be countersteping?
must he be countersteping?
must we be countersteping?
must you be countersteping?
must they be countersteping? 	must I have countersteped?
must you have countersteped?
must he have countersteped?
must we have countersteped?
must you have countersteped?
must they have countersteped? 	must I have been countersteping?
must you have been countersteping?
must he have been countersteping?
must we have been countersteping?
must you have been countersteping?
must they have been countersteping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I counterstep?
mustn't you counterstep?
mustn't he counterstep?
mustn't we counterstep?
mustn't you counterstep?
mustn't they counterstep? 	mustn't I be countersteping?
mustn't you be countersteping?
mustn't he be countersteping?
mustn't we be countersteping?
mustn't you be countersteping?
mustn't they be countersteping? 	mustn't I have countersteped?
mustn't you have countersteped?
mustn't he have countersteped?
mustn't we have countersteped?
mustn't you have countersteped?
mustn't they have countersteped? 	mustn't I have been countersteping?
mustn't you have been countersteping?
mustn't he have been countersteping?
mustn't we have been countersteping?
mustn't you have been countersteping?
mustn't they have been countersteping?