must gurgle
Verbo regular: gurgle - gurgled- gurgled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must gurgle
you must gurgle
he must gurgle
we must gurgle
you must gurgle
they must gurgle 	I must be gurgling
you must be gurgling
he must be gurgling
we must be gurgling
you must be gurgling
they must be gurgling	I must have gurgled
you must have gurgled
he must have gurgled
we must have gurgled
you must have gurgled
they must have gurgled	I must have been gurgling
you must have been gurgling
he must have been gurgling
we must have been gurgling
you must have been gurgling
they must have been gurgling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not gurgle
you must not gurgle
he must not gurgle
we must not gurgle
you must not gurgle
they must not gurgle 	I must not be gurgling
you must not be gurgling
he must not be gurgling
we must not be gurgling
you must not be gurgling
they must not be gurgling	I must not have gurgled
you must not have gurgled
he must not have gurgled
we must not have gurgled
you must not have gurgled
they must not have gurgled	I must not have been gurgling
you must not have been gurgling
he must not have been gurgling
we must not have been gurgling
you must not have been gurgling
they must not have been gurgling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I gurgle?
must you gurgle?
must he gurgle?
must we gurgle?
must you gurgle?
must they gurgle? 	must I be gurgling?
must you be gurgling?
must he be gurgling?
must we be gurgling?
must you be gurgling?
must they be gurgling? 	must I have gurgled?
must you have gurgled?
must he have gurgled?
must we have gurgled?
must you have gurgled?
must they have gurgled? 	must I have been gurgling?
must you have been gurgling?
must he have been gurgling?
must we have been gurgling?
must you have been gurgling?
must they have been gurgling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not gurgle?
must you not gurgle?
must he not gurgle?
must we not gurgle?
must you not gurgle?
must they not gurgle? 	must I not be gurgling?
must you not be gurgling?
must he not be gurgling?
must we not be gurgling?
must you not be gurgling?
must they not be gurgling? 	must I not have gurgled?
must you not have gurgled?
must he not have gurgled?
must we not have gurgled?
must you not have gurgled?
must they not have gurgled? 	must I not have been gurgling?
must you not have been gurgling?
must he not have been gurgling?
must we not have been gurgling?
must you not have been gurgling?
must they not have been gurgling?