must sparkle
Verbo regular: sparkle - sparkled- sparkled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must sparkle
you must sparkle
he must sparkle
we must sparkle
you must sparkle
they must sparkle 	I must be sparkling
you must be sparkling
he must be sparkling
we must be sparkling
you must be sparkling
they must be sparkling	I must have sparkled
you must have sparkled
he must have sparkled
we must have sparkled
you must have sparkled
they must have sparkled	I must have been sparkling
you must have been sparkling
he must have been sparkling
we must have been sparkling
you must have been sparkling
they must have been sparkling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not sparkle
you must not sparkle
he must not sparkle
we must not sparkle
you must not sparkle
they must not sparkle 	I must not be sparkling
you must not be sparkling
he must not be sparkling
we must not be sparkling
you must not be sparkling
they must not be sparkling	I must not have sparkled
you must not have sparkled
he must not have sparkled
we must not have sparkled
you must not have sparkled
they must not have sparkled	I must not have been sparkling
you must not have been sparkling
he must not have been sparkling
we must not have been sparkling
you must not have been sparkling
they must not have been sparkling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I sparkle?
must you sparkle?
must he sparkle?
must we sparkle?
must you sparkle?
must they sparkle? 	must I be sparkling?
must you be sparkling?
must he be sparkling?
must we be sparkling?
must you be sparkling?
must they be sparkling? 	must I have sparkled?
must you have sparkled?
must he have sparkled?
must we have sparkled?
must you have sparkled?
must they have sparkled? 	must I have been sparkling?
must you have been sparkling?
must he have been sparkling?
must we have been sparkling?
must you have been sparkling?
must they have been sparkling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not sparkle?
must you not sparkle?
must he not sparkle?
must we not sparkle?
must you not sparkle?
must they not sparkle? 	must I not be sparkling?
must you not be sparkling?
must he not be sparkling?
must we not be sparkling?
must you not be sparkling?
must they not be sparkling? 	must I not have sparkled?
must you not have sparkled?
must he not have sparkled?
must we not have sparkled?
must you not have sparkled?
must they not have sparkled? 	must I not have been sparkling?
must you not have been sparkling?
must he not have been sparkling?
must we not have been sparkling?
must you not have been sparkling?
must they not have been sparkling?