could abbreviate
Verbo regular: abbreviate - abbreviated- abbreviated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could abbreviate
you could abbreviate
he could abbreviate
we could abbreviate
you could abbreviate
they could abbreviate 	I could be abbreviating
you could be abbreviating
he could be abbreviating
we could be abbreviating
you could be abbreviating
they could be abbreviating	I could have abbreviated
you could have abbreviated
he could have abbreviated
we could have abbreviated
you could have abbreviated
they could have abbreviated	I could have been abbreviating
you could have been abbreviating
he could have been abbreviating
we could have been abbreviating
you could have been abbreviating
they could have been abbreviating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not abbreviate
you could not abbreviate
he could not abbreviate
we could not abbreviate
you could not abbreviate
they could not abbreviate 	I could not be abbreviating
you could not be abbreviating
he could not be abbreviating
we could not be abbreviating
you could not be abbreviating
they could not be abbreviating	I could not have abbreviated
you could not have abbreviated
he could not have abbreviated
we could not have abbreviated
you could not have abbreviated
they could not have abbreviated	I could not have been abbreviating
you could not have been abbreviating
he could not have been abbreviating
we could not have been abbreviating
you could not have been abbreviating
they could not have been abbreviating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I abbreviate?
could you abbreviate?
could he abbreviate?
could we abbreviate?
could you abbreviate?
could they abbreviate? 	could I be abbreviating?
could you be abbreviating?
could he be abbreviating?
could we be abbreviating?
could you be abbreviating?
could they be abbreviating? 	could I have abbreviated?
could you have abbreviated?
could he have abbreviated?
could we have abbreviated?
could you have abbreviated?
could they have abbreviated? 	could I have been abbreviating?
could you have been abbreviating?
could he have been abbreviating?
could we have been abbreviating?
could you have been abbreviating?
could they have been abbreviating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not abbreviate?
could you not abbreviate?
could he not abbreviate?
could we not abbreviate?
could you not abbreviate?
could they not abbreviate? 	could I not be abbreviating?
could you not be abbreviating?
could he not be abbreviating?
could we not be abbreviating?
could you not be abbreviating?
could they not be abbreviating? 	could I not have abbreviated?
could you not have abbreviated?
could he not have abbreviated?
could we not have abbreviated?
could you not have abbreviated?
could they not have abbreviated? 	could I not have been abbreviating?
could you not have been abbreviating?
could he not have been abbreviating?
could we not have been abbreviating?
could you not have been abbreviating?
could they not have been abbreviating?