should dull
Verbo regolare: dull - dulled- dulled

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I'd dull
you'd dull
he'd dull
we'd dull
you'd dull
they'd dull 	I'd be dulling
you'd be dulling
he'd be dulling
we'd be dulling
you'd be dulling
they'd be dulling	I should've dulled
you should've dulled
he should've dulled
we should've dulled
you should've dulled
they should've dulled	I should've been dulling
you should've been dulling
he should've been dulling
we should've been dulling
you should've been dulling
they should've been dulling	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I shouldn't dull
you shouldn't dull
he shouldn't dull
we shouldn't dull
you shouldn't dull
they shouldn't dull 	I shouldn't be dulling
you shouldn't be dulling
he shouldn't be dulling
we shouldn't be dulling
you shouldn't be dulling
they shouldn't be dulling	I shouldn't have dulled
you shouldn't have dulled
he shouldn't have dulled
we shouldn't have dulled
you shouldn't have dulled
they shouldn't have dulled	I shouldn't have been dulling
you shouldn't have been dulling
he shouldn't have been dulling
we shouldn't have been dulling
you shouldn't have been dulling
they shouldn't have been dulling	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I dull?
should you dull?
should he dull?
should we dull?
should you dull?
should they dull? 	should I be dulling?
should you be dulling?
should he be dulling?
should we be dulling?
should you be dulling?
should they be dulling? 	should I have dulled?
should you have dulled?
should he have dulled?
should we have dulled?
should you have dulled?
should they have dulled? 	should I have been dulling?
should you have been dulling?
should he have been dulling?
should we have been dulling?
should you have been dulling?
should they have been dulling? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
shouldn't I dull?
shouldn't you dull?
shouldn't he dull?
shouldn't we dull?
shouldn't you dull?
shouldn't they dull? 	shouldn't I be dulling?
shouldn't you be dulling?
shouldn't he be dulling?
shouldn't we be dulling?
shouldn't you be dulling?
shouldn't they be dulling? 	shouldn't I have dulled?
shouldn't you have dulled?
shouldn't he have dulled?
shouldn't we have dulled?
shouldn't you have dulled?
shouldn't they have dulled? 	shouldn't I have been dulling?
shouldn't you have been dulling?
shouldn't he have been dulling?
shouldn't we have been dulling?
shouldn't you have been dulling?
shouldn't they have been dulling?