could describe
Verbo regular: describe - described- described

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could describe
you could describe
he could describe
we could describe
you could describe
they could describe 	I could be describing
you could be describing
he could be describing
we could be describing
you could be describing
they could be describing	I could have described
you could have described
he could have described
we could have described
you could have described
they could have described	I could have been describing
you could have been describing
he could have been describing
we could have been describing
you could have been describing
they could have been describing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't describe
you couldn't describe
he couldn't describe
we couldn't describe
you couldn't describe
they couldn't describe 	I couldn't be describing
you couldn't be describing
he couldn't be describing
we couldn't be describing
you couldn't be describing
they couldn't be describing	I couldn't have described
you couldn't have described
he couldn't have described
we couldn't have described
you couldn't have described
they couldn't have described	I couldn't have been describing
you couldn't have been describing
he couldn't have been describing
we couldn't have been describing
you couldn't have been describing
they couldn't have been describing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I describe?
could you describe?
could he describe?
could we describe?
could you describe?
could they describe? 	could I be describing?
could you be describing?
could he be describing?
could we be describing?
could you be describing?
could they be describing? 	could I have described?
could you have described?
could he have described?
could we have described?
could you have described?
could they have described? 	could I have been describing?
could you have been describing?
could he have been describing?
could we have been describing?
could you have been describing?
could they have been describing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I describe?
couldn't you describe?
couldn't he describe?
couldn't we describe?
couldn't you describe?
couldn't they describe? 	couldn't I be describing?
couldn't you be describing?
couldn't he be describing?
couldn't we be describing?
couldn't you be describing?
couldn't they be describing? 	couldn't I have described?
couldn't you have described?
couldn't he have described?
couldn't we have described?
couldn't you have described?
couldn't they have described? 	couldn't I have been describing?
couldn't you have been describing?
couldn't he have been describing?
couldn't we have been describing?
couldn't you have been describing?
couldn't they have been describing?