must curse
Verbo regular: curse - cursed- cursed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must curse
you must curse
he must curse
we must curse
you must curse
they must curse 	I must be cursing
you must be cursing
he must be cursing
we must be cursing
you must be cursing
they must be cursing	I must have cursed
you must have cursed
he must have cursed
we must have cursed
you must have cursed
they must have cursed	I must have been cursing
you must have been cursing
he must have been cursing
we must have been cursing
you must have been cursing
they must have been cursing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not curse
you must not curse
he must not curse
we must not curse
you must not curse
they must not curse 	I must not be cursing
you must not be cursing
he must not be cursing
we must not be cursing
you must not be cursing
they must not be cursing	I must not have cursed
you must not have cursed
he must not have cursed
we must not have cursed
you must not have cursed
they must not have cursed	I must not have been cursing
you must not have been cursing
he must not have been cursing
we must not have been cursing
you must not have been cursing
they must not have been cursing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I curse?
must you curse?
must he curse?
must we curse?
must you curse?
must they curse? 	must I be cursing?
must you be cursing?
must he be cursing?
must we be cursing?
must you be cursing?
must they be cursing? 	must I have cursed?
must you have cursed?
must he have cursed?
must we have cursed?
must you have cursed?
must they have cursed? 	must I have been cursing?
must you have been cursing?
must he have been cursing?
must we have been cursing?
must you have been cursing?
must they have been cursing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not curse?
must you not curse?
must he not curse?
must we not curse?
must you not curse?
must they not curse? 	must I not be cursing?
must you not be cursing?
must he not be cursing?
must we not be cursing?
must you not be cursing?
must they not be cursing? 	must I not have cursed?
must you not have cursed?
must he not have cursed?
must we not have cursed?
must you not have cursed?
must they not have cursed? 	must I not have been cursing?
must you not have been cursing?
must he not have been cursing?
must we not have been cursing?
must you not have been cursing?
must they not have been cursing?