could cat
Verbo regular: cat - cated- cated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could cat
you could cat
he could cat
we could cat
you could cat
they could cat 	I could be cating
you could be cating
he could be cating
we could be cating
you could be cating
they could be cating	I could have cated
you could have cated
he could have cated
we could have cated
you could have cated
they could have cated	I could have been cating
you could have been cating
he could have been cating
we could have been cating
you could have been cating
they could have been cating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not cat
you could not cat
he could not cat
we could not cat
you could not cat
they could not cat 	I could not be cating
you could not be cating
he could not be cating
we could not be cating
you could not be cating
they could not be cating	I could not have cated
you could not have cated
he could not have cated
we could not have cated
you could not have cated
they could not have cated	I could not have been cating
you could not have been cating
he could not have been cating
we could not have been cating
you could not have been cating
they could not have been cating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I cat?
could you cat?
could he cat?
could we cat?
could you cat?
could they cat? 	could I be cating?
could you be cating?
could he be cating?
could we be cating?
could you be cating?
could they be cating? 	could I have cated?
could you have cated?
could he have cated?
could we have cated?
could you have cated?
could they have cated? 	could I have been cating?
could you have been cating?
could he have been cating?
could we have been cating?
could you have been cating?
could they have been cating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not cat?
could you not cat?
could he not cat?
could we not cat?
could you not cat?
could they not cat? 	could I not be cating?
could you not be cating?
could he not be cating?
could we not be cating?
could you not be cating?
could they not be cating? 	could I not have cated?
could you not have cated?
could he not have cated?
could we not have cated?
could you not have cated?
could they not have cated? 	could I not have been cating?
could you not have been cating?
could he not have been cating?
could we not have been cating?
could you not have been cating?
could they not have been cating?