must splutter
Verbo regular: splutter - spluttered- spluttered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must splutter
you must splutter
he must splutter
we must splutter
you must splutter
they must splutter 	I must be spluttering
you must be spluttering
he must be spluttering
we must be spluttering
you must be spluttering
they must be spluttering	I must have spluttered
you must have spluttered
he must have spluttered
we must have spluttered
you must have spluttered
they must have spluttered	I must have been spluttering
you must have been spluttering
he must have been spluttering
we must have been spluttering
you must have been spluttering
they must have been spluttering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't splutter
you mustn't splutter
he mustn't splutter
we mustn't splutter
you mustn't splutter
they mustn't splutter 	I mustn't be spluttering
you mustn't be spluttering
he mustn't be spluttering
we mustn't be spluttering
you mustn't be spluttering
they mustn't be spluttering	I mustn't have spluttered
you mustn't have spluttered
he mustn't have spluttered
we mustn't have spluttered
you mustn't have spluttered
they mustn't have spluttered	I mustn't have been spluttering
you mustn't have been spluttering
he mustn't have been spluttering
we mustn't have been spluttering
you mustn't have been spluttering
they mustn't have been spluttering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I splutter?
must you splutter?
must he splutter?
must we splutter?
must you splutter?
must they splutter? 	must I be spluttering?
must you be spluttering?
must he be spluttering?
must we be spluttering?
must you be spluttering?
must they be spluttering? 	must I have spluttered?
must you have spluttered?
must he have spluttered?
must we have spluttered?
must you have spluttered?
must they have spluttered? 	must I have been spluttering?
must you have been spluttering?
must he have been spluttering?
must we have been spluttering?
must you have been spluttering?
must they have been spluttering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I splutter?
mustn't you splutter?
mustn't he splutter?
mustn't we splutter?
mustn't you splutter?
mustn't they splutter? 	mustn't I be spluttering?
mustn't you be spluttering?
mustn't he be spluttering?
mustn't we be spluttering?
mustn't you be spluttering?
mustn't they be spluttering? 	mustn't I have spluttered?
mustn't you have spluttered?
mustn't he have spluttered?
mustn't we have spluttered?
mustn't you have spluttered?
mustn't they have spluttered? 	mustn't I have been spluttering?
mustn't you have been spluttering?
mustn't he have been spluttering?
mustn't we have been spluttering?
mustn't you have been spluttering?
mustn't they have been spluttering?