must sponge
Verbo regolare: sponge - sponged- sponged

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must sponge
you must sponge
he must sponge
we must sponge
you must sponge
they must sponge 	I must be sponging
you must be sponging
he must be sponging
we must be sponging
you must be sponging
they must be sponging	I must have sponged
you must have sponged
he must have sponged
we must have sponged
you must have sponged
they must have sponged	I must have been sponging
you must have been sponging
he must have been sponging
we must have been sponging
you must have been sponging
they must have been sponging	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't sponge
you mustn't sponge
he mustn't sponge
we mustn't sponge
you mustn't sponge
they mustn't sponge 	I mustn't be sponging
you mustn't be sponging
he mustn't be sponging
we mustn't be sponging
you mustn't be sponging
they mustn't be sponging	I mustn't have sponged
you mustn't have sponged
he mustn't have sponged
we mustn't have sponged
you mustn't have sponged
they mustn't have sponged	I mustn't have been sponging
you mustn't have been sponging
he mustn't have been sponging
we mustn't have been sponging
you mustn't have been sponging
they mustn't have been sponging	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I sponge?
must you sponge?
must he sponge?
must we sponge?
must you sponge?
must they sponge? 	must I be sponging?
must you be sponging?
must he be sponging?
must we be sponging?
must you be sponging?
must they be sponging? 	must I have sponged?
must you have sponged?
must he have sponged?
must we have sponged?
must you have sponged?
must they have sponged? 	must I have been sponging?
must you have been sponging?
must he have been sponging?
must we have been sponging?
must you have been sponging?
must they have been sponging? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I sponge?
mustn't you sponge?
mustn't he sponge?
mustn't we sponge?
mustn't you sponge?
mustn't they sponge? 	mustn't I be sponging?
mustn't you be sponging?
mustn't he be sponging?
mustn't we be sponging?
mustn't you be sponging?
mustn't they be sponging? 	mustn't I have sponged?
mustn't you have sponged?
mustn't he have sponged?
mustn't we have sponged?
mustn't you have sponged?
mustn't they have sponged? 	mustn't I have been sponging?
mustn't you have been sponging?
mustn't he have been sponging?
mustn't we have been sponging?
mustn't you have been sponging?
mustn't they have been sponging?