should lengthen
Verbo regolare: lengthen - lengthened- lengthened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I'd lengthen
you'd lengthen
he'd lengthen
we'd lengthen
you'd lengthen
they'd lengthen 	I'd be lengthening
you'd be lengthening
he'd be lengthening
we'd be lengthening
you'd be lengthening
they'd be lengthening	I should've lengthened
you should've lengthened
he should've lengthened
we should've lengthened
you should've lengthened
they should've lengthened	I should've been lengthening
you should've been lengthening
he should've been lengthening
we should've been lengthening
you should've been lengthening
they should've been lengthening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I shouldn't lengthen
you shouldn't lengthen
he shouldn't lengthen
we shouldn't lengthen
you shouldn't lengthen
they shouldn't lengthen 	I shouldn't be lengthening
you shouldn't be lengthening
he shouldn't be lengthening
we shouldn't be lengthening
you shouldn't be lengthening
they shouldn't be lengthening	I shouldn't have lengthened
you shouldn't have lengthened
he shouldn't have lengthened
we shouldn't have lengthened
you shouldn't have lengthened
they shouldn't have lengthened	I shouldn't have been lengthening
you shouldn't have been lengthening
he shouldn't have been lengthening
we shouldn't have been lengthening
you shouldn't have been lengthening
they shouldn't have been lengthening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I lengthen?
should you lengthen?
should he lengthen?
should we lengthen?
should you lengthen?
should they lengthen? 	should I be lengthening?
should you be lengthening?
should he be lengthening?
should we be lengthening?
should you be lengthening?
should they be lengthening? 	should I have lengthened?
should you have lengthened?
should he have lengthened?
should we have lengthened?
should you have lengthened?
should they have lengthened? 	should I have been lengthening?
should you have been lengthening?
should he have been lengthening?
should we have been lengthening?
should you have been lengthening?
should they have been lengthening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
shouldn't I lengthen?
shouldn't you lengthen?
shouldn't he lengthen?
shouldn't we lengthen?
shouldn't you lengthen?
shouldn't they lengthen? 	shouldn't I be lengthening?
shouldn't you be lengthening?
shouldn't he be lengthening?
shouldn't we be lengthening?
shouldn't you be lengthening?
shouldn't they be lengthening? 	shouldn't I have lengthened?
shouldn't you have lengthened?
shouldn't he have lengthened?
shouldn't we have lengthened?
shouldn't you have lengthened?
shouldn't they have lengthened? 	shouldn't I have been lengthening?
shouldn't you have been lengthening?
shouldn't he have been lengthening?
shouldn't we have been lengthening?
shouldn't you have been lengthening?
shouldn't they have been lengthening?