should shack
Verbo regular: shack - shacked- shacked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should shack
you should shack
she should shack
we should shack
you should shack
they should shack 	I should be shacking
you should be shacking
she should be shacking
we should be shacking
you should be shacking
they should be shacking	I should have shacked
you should have shacked
she should have shacked
we should have shacked
you should have shacked
they should have shacked	I should have been shacking
you should have been shacking
she should have been shacking
we should have been shacking
you should have been shacking
they should have been shacking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not shack
you should not shack
she should not shack
we should not shack
you should not shack
they should not shack 	I should not be shacking
you should not be shacking
she should not be shacking
we should not be shacking
you should not be shacking
they should not be shacking	I should not have shacked
you should not have shacked
she should not have shacked
we should not have shacked
you should not have shacked
they should not have shacked	I should not have been shacking
you should not have been shacking
she should not have been shacking
we should not have been shacking
you should not have been shacking
they should not have been shacking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I shack?
should you shack?
should she shack?
should we shack?
should you shack?
should they shack? 	should I be shacking?
should you be shacking?
should she be shacking?
should we be shacking?
should you be shacking?
should they be shacking? 	should I have shacked?
should you have shacked?
should she have shacked?
should we have shacked?
should you have shacked?
should they have shacked? 	should I have been shacking?
should you have been shacking?
should she have been shacking?
should we have been shacking?
should you have been shacking?
should they have been shacking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not shack?
should you not shack?
should she not shack?
should we not shack?
should you not shack?
should they not shack? 	should I not be shacking?
should you not be shacking?
should she not be shacking?
should we not be shacking?
should you not be shacking?
should they not be shacking? 	should I not have shacked?
should you not have shacked?
should she not have shacked?
should we not have shacked?
should you not have shacked?
should they not have shacked? 	should I not have been shacking?
should you not have been shacking?
should she not have been shacking?
should we not have been shacking?
should you not have been shacking?
should they not have been shacking?