should smoothen
Verbo regular: smoothen - smoothened- smoothened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should smoothen
you should smoothen
he should smoothen
we should smoothen
you should smoothen
they should smoothen 	I should be smoothening
you should be smoothening
he should be smoothening
we should be smoothening
you should be smoothening
they should be smoothening	I should have smoothened
you should have smoothened
he should have smoothened
we should have smoothened
you should have smoothened
they should have smoothened	I should have been smoothening
you should have been smoothening
he should have been smoothening
we should have been smoothening
you should have been smoothening
they should have been smoothening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not smoothen
you should not smoothen
he should not smoothen
we should not smoothen
you should not smoothen
they should not smoothen 	I should not be smoothening
you should not be smoothening
he should not be smoothening
we should not be smoothening
you should not be smoothening
they should not be smoothening	I should not have smoothened
you should not have smoothened
he should not have smoothened
we should not have smoothened
you should not have smoothened
they should not have smoothened	I should not have been smoothening
you should not have been smoothening
he should not have been smoothening
we should not have been smoothening
you should not have been smoothening
they should not have been smoothening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not smoothen?
should you not smoothen?
should he not smoothen?
should we not smoothen?
should you not smoothen?
should they not smoothen? 	should I not be smoothening?
should you not be smoothening?
should he not be smoothening?
should we not be smoothening?
should you not be smoothening?
should they not be smoothening? 	should I not have smoothened?
should you not have smoothened?
should he not have smoothened?
should we not have smoothened?
should you not have smoothened?
should they not have smoothened? 	should I not have been smoothening?
should you not have been smoothening?
should he not have been smoothening?
should we not have been smoothening?
should you not have been smoothening?
should they not have been smoothening?