should frost
Verbo regular: frost - frosted- frosted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should frost
you should frost
he should frost
we should frost
you should frost
they should frost 	I should be frosting
you should be frosting
he should be frosting
we should be frosting
you should be frosting
they should be frosting	I should have frosted
you should have frosted
he should have frosted
we should have frosted
you should have frosted
they should have frosted	I should have been frosting
you should have been frosting
he should have been frosting
we should have been frosting
you should have been frosting
they should have been frosting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not frost
you should not frost
he should not frost
we should not frost
you should not frost
they should not frost 	I should not be frosting
you should not be frosting
he should not be frosting
we should not be frosting
you should not be frosting
they should not be frosting	I should not have frosted
you should not have frosted
he should not have frosted
we should not have frosted
you should not have frosted
they should not have frosted	I should not have been frosting
you should not have been frosting
he should not have been frosting
we should not have been frosting
you should not have been frosting
they should not have been frosting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I frost?
should you frost?
should he frost?
should we frost?
should you frost?
should they frost? 	should I be frosting?
should you be frosting?
should he be frosting?
should we be frosting?
should you be frosting?
should they be frosting? 	should I have frosted?
should you have frosted?
should he have frosted?
should we have frosted?
should you have frosted?
should they have frosted? 	should I have been frosting?
should you have been frosting?
should he have been frosting?
should we have been frosting?
should you have been frosting?
should they have been frosting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not frost?
should you not frost?
should he not frost?
should we not frost?
should you not frost?
should they not frost? 	should I not be frosting?
should you not be frosting?
should he not be frosting?
should we not be frosting?
should you not be frosting?
should they not be frosting? 	should I not have frosted?
should you not have frosted?
should he not have frosted?
should we not have frosted?
should you not have frosted?
should they not have frosted? 	should I not have been frosting?
should you not have been frosting?
should he not have been frosting?
should we not have been frosting?
should you not have been frosting?
should they not have been frosting?