could unbuild
Verbo irregular: unbuild - unbuilt- unbuilt

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could unbuild
you could unbuild
he could unbuild
we could unbuild
you could unbuild
they could unbuild 	I could be unbuilding
you could be unbuilding
he could be unbuilding
we could be unbuilding
you could be unbuilding
they could be unbuilding	I could have unbuilt
you could have unbuilt
he could have unbuilt
we could have unbuilt
you could have unbuilt
they could have unbuilt	I could have been unbuilding
you could have been unbuilding
he could have been unbuilding
we could have been unbuilding
you could have been unbuilding
they could have been unbuilding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not unbuild
you could not unbuild
he could not unbuild
we could not unbuild
you could not unbuild
they could not unbuild 	I could not be unbuilding
you could not be unbuilding
he could not be unbuilding
we could not be unbuilding
you could not be unbuilding
they could not be unbuilding	I could not have unbuilt
you could not have unbuilt
he could not have unbuilt
we could not have unbuilt
you could not have unbuilt
they could not have unbuilt	I could not have been unbuilding
you could not have been unbuilding
he could not have been unbuilding
we could not have been unbuilding
you could not have been unbuilding
they could not have been unbuilding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I unbuild?
could you unbuild?
could he unbuild?
could we unbuild?
could you unbuild?
could they unbuild? 	could I be unbuilding?
could you be unbuilding?
could he be unbuilding?
could we be unbuilding?
could you be unbuilding?
could they be unbuilding? 	could I have unbuilt?
could you have unbuilt?
could he have unbuilt?
could we have unbuilt?
could you have unbuilt?
could they have unbuilt? 	could I have been unbuilding?
could you have been unbuilding?
could he have been unbuilding?
could we have been unbuilding?
could you have been unbuilding?
could they have been unbuilding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not unbuild?
could you not unbuild?
could he not unbuild?
could we not unbuild?
could you not unbuild?
could they not unbuild? 	could I not be unbuilding?
could you not be unbuilding?
could he not be unbuilding?
could we not be unbuilding?
could you not be unbuilding?
could they not be unbuilding? 	could I not have unbuilt?
could you not have unbuilt?
could he not have unbuilt?
could we not have unbuilt?
could you not have unbuilt?
could they not have unbuilt? 	could I not have been unbuilding?
could you not have been unbuilding?
could he not have been unbuilding?
could we not have been unbuilding?
could you not have been unbuilding?
could they not have been unbuilding?