must gurgle
Regular verb: gurgle - gurgled- gurgled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't gurgle
you mustn't gurgle
he mustn't gurgle
we mustn't gurgle
you mustn't gurgle
they mustn't gurgle 	I mustn't be gurgling
you mustn't be gurgling
he mustn't be gurgling
we mustn't be gurgling
you mustn't be gurgling
they mustn't be gurgling	I mustn't have gurgled
you mustn't have gurgled
he mustn't have gurgled
we mustn't have gurgled
you mustn't have gurgled
they mustn't have gurgled	I mustn't have been gurgling
you mustn't have been gurgling
he mustn't have been gurgling
we mustn't have been gurgling
you mustn't have been gurgling
they mustn't have been gurgling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I gurgle?
mustn't you gurgle?
mustn't he gurgle?
mustn't we gurgle?
mustn't you gurgle?
mustn't they gurgle? 	mustn't I be gurgling?
mustn't you be gurgling?
mustn't he be gurgling?
mustn't we be gurgling?
mustn't you be gurgling?
mustn't they be gurgling? 	mustn't I have gurgled?
mustn't you have gurgled?
mustn't he have gurgled?
mustn't we have gurgled?
mustn't you have gurgled?
mustn't they have gurgled? 	mustn't I have been gurgling?
mustn't you have been gurgling?
mustn't he have been gurgling?
mustn't we have been gurgling?
mustn't you have been gurgling?
mustn't they have been gurgling?