must preselect
Verbo regular: preselect - preselected- preselected

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must preselect
you must preselect
he must preselect
we must preselect
you must preselect
they must preselect 	I must be preselecting
you must be preselecting
he must be preselecting
we must be preselecting
you must be preselecting
they must be preselecting	I must have preselected
you must have preselected
he must have preselected
we must have preselected
you must have preselected
they must have preselected	I must have been preselecting
you must have been preselecting
he must have been preselecting
we must have been preselecting
you must have been preselecting
they must have been preselecting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't preselect
you mustn't preselect
he mustn't preselect
we mustn't preselect
you mustn't preselect
they mustn't preselect 	I mustn't be preselecting
you mustn't be preselecting
he mustn't be preselecting
we mustn't be preselecting
you mustn't be preselecting
they mustn't be preselecting	I mustn't have preselected
you mustn't have preselected
he mustn't have preselected
we mustn't have preselected
you mustn't have preselected
they mustn't have preselected	I mustn't have been preselecting
you mustn't have been preselecting
he mustn't have been preselecting
we mustn't have been preselecting
you mustn't have been preselecting
they mustn't have been preselecting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I preselect?
must you preselect?
must he preselect?
must we preselect?
must you preselect?
must they preselect? 	must I be preselecting?
must you be preselecting?
must he be preselecting?
must we be preselecting?
must you be preselecting?
must they be preselecting? 	must I have preselected?
must you have preselected?
must he have preselected?
must we have preselected?
must you have preselected?
must they have preselected? 	must I have been preselecting?
must you have been preselecting?
must he have been preselecting?
must we have been preselecting?
must you have been preselecting?
must they have been preselecting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I preselect?
mustn't you preselect?
mustn't he preselect?
mustn't we preselect?
mustn't you preselect?
mustn't they preselect? 	mustn't I be preselecting?
mustn't you be preselecting?
mustn't he be preselecting?
mustn't we be preselecting?
mustn't you be preselecting?
mustn't they be preselecting? 	mustn't I have preselected?
mustn't you have preselected?
mustn't he have preselected?
mustn't we have preselected?
mustn't you have preselected?
mustn't they have preselected? 	mustn't I have been preselecting?
mustn't you have been preselecting?
mustn't he have been preselecting?
mustn't we have been preselecting?
mustn't you have been preselecting?
mustn't they have been preselecting?