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 must not preselect
you must not preselect
he must not preselect
we must not preselect
you must not preselect
they must not preselect 	I must not be preselecting
you must not be preselecting
he must not be preselecting
we must not be preselecting
you must not be preselecting
they must not be preselecting	I must not have preselected
you must not have preselected
he must not have preselected
we must not have preselected
you must not have preselected
they must not have preselected	I must not have been preselecting
you must not have been preselecting
he must not have been preselecting
we must not have been preselecting
you must not have been preselecting
they must not 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 	
must I not preselect?
must you not preselect?
must he not preselect?
must we not preselect?
must you not preselect?
must they not preselect? 	must I not be preselecting?
must you not be preselecting?
must he not be preselecting?
must we not be preselecting?
must you not be preselecting?
must they not be preselecting? 	must I not have preselected?
must you not have preselected?
must he not have preselected?
must we not have preselected?
must you not have preselected?
must they not have preselected? 	must I not have been preselecting?
must you not have been preselecting?
must he not have been preselecting?
must we not have been preselecting?
must you not have been preselecting?
must they not have been preselecting?