could thresh
Verbo regular: thresh - threshed- threshed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could thresh
you could thresh
he could thresh
we could thresh
you could thresh
they could thresh 	I could be threshing
you could be threshing
he could be threshing
we could be threshing
you could be threshing
they could be threshing	I could have threshed
you could have threshed
he could have threshed
we could have threshed
you could have threshed
they could have threshed	I could have been threshing
you could have been threshing
he could have been threshing
we could have been threshing
you could have been threshing
they could have been threshing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not thresh
you could not thresh
he could not thresh
we could not thresh
you could not thresh
they could not thresh 	I could not be threshing
you could not be threshing
he could not be threshing
we could not be threshing
you could not be threshing
they could not be threshing	I could not have threshed
you could not have threshed
he could not have threshed
we could not have threshed
you could not have threshed
they could not have threshed	I could not have been threshing
you could not have been threshing
he could not have been threshing
we could not have been threshing
you could not have been threshing
they could not have been threshing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I thresh?
could you thresh?
could he thresh?
could we thresh?
could you thresh?
could they thresh? 	could I be threshing?
could you be threshing?
could he be threshing?
could we be threshing?
could you be threshing?
could they be threshing? 	could I have threshed?
could you have threshed?
could he have threshed?
could we have threshed?
could you have threshed?
could they have threshed? 	could I have been threshing?
could you have been threshing?
could he have been threshing?
could we have been threshing?
could you have been threshing?
could they have been threshing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not thresh?
could you not thresh?
could he not thresh?
could we not thresh?
could you not thresh?
could they not thresh? 	could I not be threshing?
could you not be threshing?
could he not be threshing?
could we not be threshing?
could you not be threshing?
could they not be threshing? 	could I not have threshed?
could you not have threshed?
could he not have threshed?
could we not have threshed?
could you not have threshed?
could they not have threshed? 	could I not have been threshing?
could you not have been threshing?
could he not have been threshing?
could we not have been threshing?
could you not have been threshing?
could they not have been threshing?