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
she could etch
we could etch
you could etch
they could etch 	I could be etching
you could be etching
she could be etching
we could be etching
you could be etching
they could be etching	I could have etched
you could have etched
she 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
she 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 couldn't etch
you couldn't etch
she couldn't etch
we couldn't etch
you couldn't etch
they couldn't etch 	I couldn't be etching
you couldn't be etching
she couldn't be etching
we couldn't be etching
you couldn't be etching
they couldn't be etching	I couldn't have etched
you couldn't have etched
she couldn't have etched
we couldn't have etched
you couldn't have etched
they couldn't have etched	I couldn't have been etching
you couldn't have been etching
she couldn't have been etching
we couldn't have been etching
you couldn't have been etching
they couldn't have been etching	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I etch?
could you etch?
could she etch?
could we etch?
could you etch?
could they etch? 	could I be etching?
could you be etching?
could she be etching?
could we be etching?
could you be etching?
could they be etching? 	could I have etched?
could you have etched?
could she 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 she 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 	
couldn't I etch?
couldn't you etch?
couldn't she etch?
couldn't we etch?
couldn't you etch?
couldn't they etch? 	couldn't I be etching?
couldn't you be etching?
couldn't she be etching?
couldn't we be etching?
couldn't you be etching?
couldn't they be etching? 	couldn't I have etched?
couldn't you have etched?
couldn't she have etched?
couldn't we have etched?
couldn't you have etched?
couldn't they have etched? 	couldn't I have been etching?
couldn't you have been etching?
couldn't she have been etching?
couldn't we have been etching?
couldn't you have been etching?
couldn't they have been etching?