should unknot
Verbo regular: unknot - unknotted- unknotted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should unknot
you should unknot
he should unknot
we should unknot
you should unknot
they should unknot 	I should be unknotting
you should be unknotting
he should be unknotting
we should be unknotting
you should be unknotting
they should be unknotting	I should have unknotted
you should have unknotted
he should have unknotted
we should have unknotted
you should have unknotted
they should have unknotted	I should have been unknotting
you should have been unknotting
he should have been unknotting
we should have been unknotting
you should have been unknotting
they should have been unknotting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not unknot
you should not unknot
he should not unknot
we should not unknot
you should not unknot
they should not unknot 	I should not be unknotting
you should not be unknotting
he should not be unknotting
we should not be unknotting
you should not be unknotting
they should not be unknotting	I should not have unknotted
you should not have unknotted
he should not have unknotted
we should not have unknotted
you should not have unknotted
they should not have unknotted	I should not have been unknotting
you should not have been unknotting
he should not have been unknotting
we should not have been unknotting
you should not have been unknotting
they should not have been unknotting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I unknot?
should you unknot?
should he unknot?
should we unknot?
should you unknot?
should they unknot? 	should I be unknotting?
should you be unknotting?
should he be unknotting?
should we be unknotting?
should you be unknotting?
should they be unknotting? 	should I have unknotted?
should you have unknotted?
should he have unknotted?
should we have unknotted?
should you have unknotted?
should they have unknotted? 	should I have been unknotting?
should you have been unknotting?
should he have been unknotting?
should we have been unknotting?
should you have been unknotting?
should they have been unknotting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not unknot?
should you not unknot?
should he not unknot?
should we not unknot?
should you not unknot?
should they not unknot? 	should I not be unknotting?
should you not be unknotting?
should he not be unknotting?
should we not be unknotting?
should you not be unknotting?
should they not be unknotting? 	should I not have unknotted?
should you not have unknotted?
should he not have unknotted?
should we not have unknotted?
should you not have unknotted?
should they not have unknotted? 	should I not have been unknotting?
should you not have been unknotting?
should he not have been unknotting?
should we not have been unknotting?
should you not have been unknotting?
should they not have been unknotting?