could write
Verbo irregular: write - wrote- written

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could write
you could write
he could write
we could write
you could write
they could write 	I could be writing
you could be writing
he could be writing
we could be writing
you could be writing
they could be writing	I could have written
you could have written
he could have written
we could have written
you could have written
they could have written	I could have been writing
you could have been writing
he could have been writing
we could have been writing
you could have been writing
they could have been writing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not write
you could not write
he could not write
we could not write
you could not write
they could not write 	I could not be writing
you could not be writing
he could not be writing
we could not be writing
you could not be writing
they could not be writing	I could not have written
you could not have written
he could not have written
we could not have written
you could not have written
they could not have written	I could not have been writing
you could not have been writing
he could not have been writing
we could not have been writing
you could not have been writing
they could not have been writing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I write?
could you write?
could he write?
could we write?
could you write?
could they write? 	could I be writing?
could you be writing?
could he be writing?
could we be writing?
could you be writing?
could they be writing? 	could I have written?
could you have written?
could he have written?
could we have written?
could you have written?
could they have written? 	could I have been writing?
could you have been writing?
could he have been writing?
could we have been writing?
could you have been writing?
could they have been writing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not write?
could you not write?
could he not write?
could we not write?
could you not write?
could they not write? 	could I not be writing?
could you not be writing?
could he not be writing?
could we not be writing?
could you not be writing?
could they not be writing? 	could I not have written?
could you not have written?
could he not have written?
could we not have written?
could you not have written?
could they not have written? 	could I not have been writing?
could you not have been writing?
could he not have been writing?
could we not have been writing?
could you not have been writing?
could they not have been writing?