must sex
Verbo regular: sex - sexed- sexed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must sex
you must sex
he must sex
we must sex
you must sex
they must sex 	I must be sexing
you must be sexing
he must be sexing
we must be sexing
you must be sexing
they must be sexing	I must have sexed
you must have sexed
he must have sexed
we must have sexed
you must have sexed
they must have sexed	I must have been sexing
you must have been sexing
he must have been sexing
we must have been sexing
you must have been sexing
they must have been sexing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not sex
you must not sex
he must not sex
we must not sex
you must not sex
they must not sex 	I must not be sexing
you must not be sexing
he must not be sexing
we must not be sexing
you must not be sexing
they must not be sexing	I must not have sexed
you must not have sexed
he must not have sexed
we must not have sexed
you must not have sexed
they must not have sexed	I must not have been sexing
you must not have been sexing
he must not have been sexing
we must not have been sexing
you must not have been sexing
they must not have been sexing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I sex?
must you sex?
must he sex?
must we sex?
must you sex?
must they sex? 	must I be sexing?
must you be sexing?
must he be sexing?
must we be sexing?
must you be sexing?
must they be sexing? 	must I have sexed?
must you have sexed?
must he have sexed?
must we have sexed?
must you have sexed?
must they have sexed? 	must I have been sexing?
must you have been sexing?
must he have been sexing?
must we have been sexing?
must you have been sexing?
must they have been sexing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not sex?
must you not sex?
must he not sex?
must we not sex?
must you not sex?
must they not sex? 	must I not be sexing?
must you not be sexing?
must he not be sexing?
must we not be sexing?
must you not be sexing?
must they not be sexing? 	must I not have sexed?
must you not have sexed?
must he not have sexed?
must we not have sexed?
must you not have sexed?
must they not have sexed? 	must I not have been sexing?
must you not have been sexing?
must he not have been sexing?
must we not have been sexing?
must you not have been sexing?
must they not have been sexing?