should forestall
Verbo regular: forestall - forestalled- forestalled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should forestall
you should forestall
he should forestall
we should forestall
you should forestall
they should forestall 	I should be forestalling
you should be forestalling
he should be forestalling
we should be forestalling
you should be forestalling
they should be forestalling	I should have forestalled
you should have forestalled
he should have forestalled
we should have forestalled
you should have forestalled
they should have forestalled	I should have been forestalling
you should have been forestalling
he should have been forestalling
we should have been forestalling
you should have been forestalling
they should have been forestalling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not forestall
you should not forestall
he should not forestall
we should not forestall
you should not forestall
they should not forestall 	I should not be forestalling
you should not be forestalling
he should not be forestalling
we should not be forestalling
you should not be forestalling
they should not be forestalling	I should not have forestalled
you should not have forestalled
he should not have forestalled
we should not have forestalled
you should not have forestalled
they should not have forestalled	I should not have been forestalling
you should not have been forestalling
he should not have been forestalling
we should not have been forestalling
you should not have been forestalling
they should not have been forestalling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I forestall?
should you forestall?
should he forestall?
should we forestall?
should you forestall?
should they forestall? 	should I be forestalling?
should you be forestalling?
should he be forestalling?
should we be forestalling?
should you be forestalling?
should they be forestalling? 	should I have forestalled?
should you have forestalled?
should he have forestalled?
should we have forestalled?
should you have forestalled?
should they have forestalled? 	should I have been forestalling?
should you have been forestalling?
should he have been forestalling?
should we have been forestalling?
should you have been forestalling?
should they have been forestalling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not forestall?
should you not forestall?
should he not forestall?
should we not forestall?
should you not forestall?
should they not forestall? 	should I not be forestalling?
should you not be forestalling?
should he not be forestalling?
should we not be forestalling?
should you not be forestalling?
should they not be forestalling? 	should I not have forestalled?
should you not have forestalled?
should he not have forestalled?
should we not have forestalled?
should you not have forestalled?
should they not have forestalled? 	should I not have been forestalling?
should you not have been forestalling?
should he not have been forestalling?
should we not have been forestalling?
should you not have been forestalling?
should they not have been forestalling?