could etch
Verbo regular: etch - etched- etched

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could etch
you could etch
he could etch
we could etch
you could etch
they could etch 	I could be etching
you could be etching
he could be etching
we could be etching
you could be etching
they could be etching	I could have etched
you could have etched
he could have etched
we could have etched
you could have etched
they could have etched	I could have been etching
you could have been etching
he could have been etching
we could have been etching
you could have been etching
they could have been etching	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not etch
you could not etch
he could not etch
we could not etch
you could not etch
they could not etch 	I could not be etching
you could not be etching
he could not be etching
we could not be etching
you could not be etching
they could not be etching	I could not have etched
you could not have etched
he could not have etched
we could not have etched
you could not have etched
they could not have etched	I could not have been etching
you could not have been etching
he could not have been etching
we could not have been etching
you could not have been etching
they could not have been etching	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I etch?
could you etch?
could he etch?
could we etch?
could you etch?
could they etch? 	could I be etching?
could you be etching?
could he be etching?
could we be etching?
could you be etching?
could they be etching? 	could I have etched?
could you have etched?
could he have etched?
could we have etched?
could you have etched?
could they have etched? 	could I have been etching?
could you have been etching?
could he have been etching?
could we have been etching?
could you have been etching?
could they have been etching? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not etch?
could you not etch?
could he not etch?
could we not etch?
could you not etch?
could they not etch? 	could I not be etching?
could you not be etching?
could he not be etching?
could we not be etching?
could you not be etching?
could they not be etching? 	could I not have etched?
could you not have etched?
could he not have etched?
could we not have etched?
could you not have etched?
could they not have etched? 	could I not have been etching?
could you not have been etching?
could he not have been etching?
could we not have been etching?
could you not have been etching?
could they not have been etching?