should stumble
Verbo regular: stumble - stumbled- stumbled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should stumble
you should stumble
he should stumble
we should stumble
you should stumble
they should stumble 	I should be stumbling
you should be stumbling
he should be stumbling
we should be stumbling
you should be stumbling
they should be stumbling	I should have stumbled
you should have stumbled
he should have stumbled
we should have stumbled
you should have stumbled
they should have stumbled	I should have been stumbling
you should have been stumbling
he should have been stumbling
we should have been stumbling
you should have been stumbling
they should have been stumbling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not stumble
you should not stumble
he should not stumble
we should not stumble
you should not stumble
they should not stumble 	I should not be stumbling
you should not be stumbling
he should not be stumbling
we should not be stumbling
you should not be stumbling
they should not be stumbling	I should not have stumbled
you should not have stumbled
he should not have stumbled
we should not have stumbled
you should not have stumbled
they should not have stumbled	I should not have been stumbling
you should not have been stumbling
he should not have been stumbling
we should not have been stumbling
you should not have been stumbling
they should not have been stumbling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I stumble?
should you stumble?
should he stumble?
should we stumble?
should you stumble?
should they stumble? 	should I be stumbling?
should you be stumbling?
should he be stumbling?
should we be stumbling?
should you be stumbling?
should they be stumbling? 	should I have stumbled?
should you have stumbled?
should he have stumbled?
should we have stumbled?
should you have stumbled?
should they have stumbled? 	should I have been stumbling?
should you have been stumbling?
should he have been stumbling?
should we have been stumbling?
should you have been stumbling?
should they have been stumbling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not stumble?
should you not stumble?
should he not stumble?
should we not stumble?
should you not stumble?
should they not stumble? 	should I not be stumbling?
should you not be stumbling?
should he not be stumbling?
should we not be stumbling?
should you not be stumbling?
should they not be stumbling? 	should I not have stumbled?
should you not have stumbled?
should he not have stumbled?
should we not have stumbled?
should you not have stumbled?
should they not have stumbled? 	should I not have been stumbling?
should you not have been stumbling?
should he not have been stumbling?
should we not have been stumbling?
should you not have been stumbling?
should they not have been stumbling?