should smoothen
Verbo regular: smoothen - smoothened- smoothened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd smoothen
you'd smoothen
he'd smoothen
we'd smoothen
you'd smoothen
they'd smoothen 	I'd be smoothening
you'd be smoothening
he'd be smoothening
we'd be smoothening
you'd be smoothening
they'd be smoothening	I should've smoothened
you should've smoothened
he should've smoothened
we should've smoothened
you should've smoothened
they should've smoothened	I should've been smoothening
you should've been smoothening
he should've been smoothening
we should've been smoothening
you should've been smoothening
they should've been smoothening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't smoothen
you shouldn't smoothen
he shouldn't smoothen
we shouldn't smoothen
you shouldn't smoothen
they shouldn't smoothen 	I shouldn't be smoothening
you shouldn't be smoothening
he shouldn't be smoothening
we shouldn't be smoothening
you shouldn't be smoothening
they shouldn't be smoothening	I shouldn't have smoothened
you shouldn't have smoothened
he shouldn't have smoothened
we shouldn't have smoothened
you shouldn't have smoothened
they shouldn't have smoothened	I shouldn't have been smoothening
you shouldn't have been smoothening
he shouldn't have been smoothening
we shouldn't have been smoothening
you shouldn't have been smoothening
they shouldn't have been smoothening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I smoothen?
should you smoothen?
should he smoothen?
should we smoothen?
should you smoothen?
should they smoothen? 	should I be smoothening?
should you be smoothening?
should he be smoothening?
should we be smoothening?
should you be smoothening?
should they be smoothening? 	should I have smoothened?
should you have smoothened?
should he have smoothened?
should we have smoothened?
should you have smoothened?
should they have smoothened? 	should I have been smoothening?
should you have been smoothening?
should he have been smoothening?
should we have been smoothening?
should you have been smoothening?
should they have been smoothening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I smoothen?
shouldn't you smoothen?
shouldn't he smoothen?
shouldn't we smoothen?
shouldn't you smoothen?
shouldn't they smoothen? 	shouldn't I be smoothening?
shouldn't you be smoothening?
shouldn't he be smoothening?
shouldn't we be smoothening?
shouldn't you be smoothening?
shouldn't they be smoothening? 	shouldn't I have smoothened?
shouldn't you have smoothened?
shouldn't he have smoothened?
shouldn't we have smoothened?
shouldn't you have smoothened?
shouldn't they have smoothened? 	shouldn't I have been smoothening?
shouldn't you have been smoothening?
shouldn't he have been smoothening?
shouldn't we have been smoothening?
shouldn't you have been smoothening?
shouldn't they have been smoothening?