must quadrate
Verbo regular: quadrate - quadrated- quadrated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must quadrate
you must quadrate
he must quadrate
we must quadrate
you must quadrate
they must quadrate 	I must be quadrating
you must be quadrating
he must be quadrating
we must be quadrating
you must be quadrating
they must be quadrating	I must have quadrated
you must have quadrated
he must have quadrated
we must have quadrated
you must have quadrated
they must have quadrated	I must have been quadrating
you must have been quadrating
he must have been quadrating
we must have been quadrating
you must have been quadrating
they must have been quadrating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not quadrate
you must not quadrate
he must not quadrate
we must not quadrate
you must not quadrate
they must not quadrate 	I must not be quadrating
you must not be quadrating
he must not be quadrating
we must not be quadrating
you must not be quadrating
they must not be quadrating	I must not have quadrated
you must not have quadrated
he must not have quadrated
we must not have quadrated
you must not have quadrated
they must not have quadrated	I must not have been quadrating
you must not have been quadrating
he must not have been quadrating
we must not have been quadrating
you must not have been quadrating
they must not have been quadrating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I quadrate?
must you quadrate?
must he quadrate?
must we quadrate?
must you quadrate?
must they quadrate? 	must I be quadrating?
must you be quadrating?
must he be quadrating?
must we be quadrating?
must you be quadrating?
must they be quadrating? 	must I have quadrated?
must you have quadrated?
must he have quadrated?
must we have quadrated?
must you have quadrated?
must they have quadrated? 	must I have been quadrating?
must you have been quadrating?
must he have been quadrating?
must we have been quadrating?
must you have been quadrating?
must they have been quadrating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not quadrate?
must you not quadrate?
must he not quadrate?
must we not quadrate?
must you not quadrate?
must they not quadrate? 	must I not be quadrating?
must you not be quadrating?
must he not be quadrating?
must we not be quadrating?
must you not be quadrating?
must they not be quadrating? 	must I not have quadrated?
must you not have quadrated?
must he not have quadrated?
must we not have quadrated?
must you not have quadrated?
must they not have quadrated? 	must I not have been quadrating?
must you not have been quadrating?
must he not have been quadrating?
must we not have been quadrating?
must you not have been quadrating?
must they not have been quadrating?