should petition
Verbo regular: petition - petitioned- petitioned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should petition
you should petition
he should petition
we should petition
you should petition
they should petition 	I should be petitioning
you should be petitioning
he should be petitioning
we should be petitioning
you should be petitioning
they should be petitioning	I should have petitioned
you should have petitioned
he should have petitioned
we should have petitioned
you should have petitioned
they should have petitioned	I should have been petitioning
you should have been petitioning
he should have been petitioning
we should have been petitioning
you should have been petitioning
they should have been petitioning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not petition
you should not petition
he should not petition
we should not petition
you should not petition
they should not petition 	I should not be petitioning
you should not be petitioning
he should not be petitioning
we should not be petitioning
you should not be petitioning
they should not be petitioning	I should not have petitioned
you should not have petitioned
he should not have petitioned
we should not have petitioned
you should not have petitioned
they should not have petitioned	I should not have been petitioning
you should not have been petitioning
he should not have been petitioning
we should not have been petitioning
you should not have been petitioning
they should not have been petitioning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I petition?
should you petition?
should he petition?
should we petition?
should you petition?
should they petition? 	should I be petitioning?
should you be petitioning?
should he be petitioning?
should we be petitioning?
should you be petitioning?
should they be petitioning? 	should I have petitioned?
should you have petitioned?
should he have petitioned?
should we have petitioned?
should you have petitioned?
should they have petitioned? 	should I have been petitioning?
should you have been petitioning?
should he have been petitioning?
should we have been petitioning?
should you have been petitioning?
should they have been petitioning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not petition?
should you not petition?
should he not petition?
should we not petition?
should you not petition?
should they not petition? 	should I not be petitioning?
should you not be petitioning?
should he not be petitioning?
should we not be petitioning?
should you not be petitioning?
should they not be petitioning? 	should I not have petitioned?
should you not have petitioned?
should he not have petitioned?
should we not have petitioned?
should you not have petitioned?
should they not have petitioned? 	should I not have been petitioning?
should you not have been petitioning?
should he not have been petitioning?
should we not have been petitioning?
should you not have been petitioning?
should they not have been petitioning?