must matter
Verbo regolare: matter - mattered- mattered

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must matter
you must matter
he must matter
we must matter
you must matter
they must matter 	I must be mattering
you must be mattering
he must be mattering
we must be mattering
you must be mattering
they must be mattering	I must have mattered
you must have mattered
he must have mattered
we must have mattered
you must have mattered
they must have mattered	I must have been mattering
you must have been mattering
he must have been mattering
we must have been mattering
you must have been mattering
they must have been mattering	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't matter
you mustn't matter
he mustn't matter
we mustn't matter
you mustn't matter
they mustn't matter 	I mustn't be mattering
you mustn't be mattering
he mustn't be mattering
we mustn't be mattering
you mustn't be mattering
they mustn't be mattering	I mustn't have mattered
you mustn't have mattered
he mustn't have mattered
we mustn't have mattered
you mustn't have mattered
they mustn't have mattered	I mustn't have been mattering
you mustn't have been mattering
he mustn't have been mattering
we mustn't have been mattering
you mustn't have been mattering
they mustn't have been mattering	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I matter?
must you matter?
must he matter?
must we matter?
must you matter?
must they matter? 	must I be mattering?
must you be mattering?
must he be mattering?
must we be mattering?
must you be mattering?
must they be mattering? 	must I have mattered?
must you have mattered?
must he have mattered?
must we have mattered?
must you have mattered?
must they have mattered? 	must I have been mattering?
must you have been mattering?
must he have been mattering?
must we have been mattering?
must you have been mattering?
must they have been mattering? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I matter?
mustn't you matter?
mustn't he matter?
mustn't we matter?
mustn't you matter?
mustn't they matter? 	mustn't I be mattering?
mustn't you be mattering?
mustn't he be mattering?
mustn't we be mattering?
mustn't you be mattering?
mustn't they be mattering? 	mustn't I have mattered?
mustn't you have mattered?
mustn't he have mattered?
mustn't we have mattered?
mustn't you have mattered?
mustn't they have mattered? 	mustn't I have been mattering?
mustn't you have been mattering?
mustn't he have been mattering?
mustn't we have been mattering?
mustn't you have been mattering?
mustn't they have been mattering?