could engrave
Verbo regular: engrave - engraved- engraved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could engrave
you could engrave
he could engrave
we could engrave
you could engrave
they could engrave 	I could be engraving
you could be engraving
he could be engraving
we could be engraving
you could be engraving
they could be engraving	I could have engraved
you could have engraved
he could have engraved
we could have engraved
you could have engraved
they could have engraved	I could have been engraving
you could have been engraving
he could have been engraving
we could have been engraving
you could have been engraving
they could have been engraving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not engrave
you could not engrave
he could not engrave
we could not engrave
you could not engrave
they could not engrave 	I could not be engraving
you could not be engraving
he could not be engraving
we could not be engraving
you could not be engraving
they could not be engraving	I could not have engraved
you could not have engraved
he could not have engraved
we could not have engraved
you could not have engraved
they could not have engraved	I could not have been engraving
you could not have been engraving
he could not have been engraving
we could not have been engraving
you could not have been engraving
they could not have been engraving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I engrave?
could you engrave?
could he engrave?
could we engrave?
could you engrave?
could they engrave? 	could I be engraving?
could you be engraving?
could he be engraving?
could we be engraving?
could you be engraving?
could they be engraving? 	could I have engraved?
could you have engraved?
could he have engraved?
could we have engraved?
could you have engraved?
could they have engraved? 	could I have been engraving?
could you have been engraving?
could he have been engraving?
could we have been engraving?
could you have been engraving?
could they have been engraving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not engrave?
could you not engrave?
could he not engrave?
could we not engrave?
could you not engrave?
could they not engrave? 	could I not be engraving?
could you not be engraving?
could he not be engraving?
could we not be engraving?
could you not be engraving?
could they not be engraving? 	could I not have engraved?
could you not have engraved?
could he not have engraved?
could we not have engraved?
could you not have engraved?
could they not have engraved? 	could I not have been engraving?
could you not have been engraving?
could he not have been engraving?
could we not have been engraving?
could you not have been engraving?
could they not have been engraving?