should curtain
Verbo regolare: curtain - curtained- curtained

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I should curtain
you should curtain
he should curtain
we should curtain
you should curtain
they should curtain 	I should be curtaining
you should be curtaining
he should be curtaining
we should be curtaining
you should be curtaining
they should be curtaining	I should have curtained
you should have curtained
he should have curtained
we should have curtained
you should have curtained
they should have curtained	I should have been curtaining
you should have been curtaining
he should have been curtaining
we should have been curtaining
you should have been curtaining
they should have been curtaining	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I should not curtain
you should not curtain
he should not curtain
we should not curtain
you should not curtain
they should not curtain 	I should not be curtaining
you should not be curtaining
he should not be curtaining
we should not be curtaining
you should not be curtaining
they should not be curtaining	I should not have curtained
you should not have curtained
he should not have curtained
we should not have curtained
you should not have curtained
they should not have curtained	I should not have been curtaining
you should not have been curtaining
he should not have been curtaining
we should not have been curtaining
you should not have been curtaining
they should not have been curtaining	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I curtain?
should you curtain?
should he curtain?
should we curtain?
should you curtain?
should they curtain? 	should I be curtaining?
should you be curtaining?
should he be curtaining?
should we be curtaining?
should you be curtaining?
should they be curtaining? 	should I have curtained?
should you have curtained?
should he have curtained?
should we have curtained?
should you have curtained?
should they have curtained? 	should I have been curtaining?
should you have been curtaining?
should he have been curtaining?
should we have been curtaining?
should you have been curtaining?
should they have been curtaining? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I not curtain?
should you not curtain?
should he not curtain?
should we not curtain?
should you not curtain?
should they not curtain? 	should I not be curtaining?
should you not be curtaining?
should he not be curtaining?
should we not be curtaining?
should you not be curtaining?
should they not be curtaining? 	should I not have curtained?
should you not have curtained?
should he not have curtained?
should we not have curtained?
should you not have curtained?
should they not have curtained? 	should I not have been curtaining?
should you not have been curtaining?
should he not have been curtaining?
should we not have been curtaining?
should you not have been curtaining?
should they not have been curtaining?