could solfa
Verbo regular: solfa - solfaed- solfaed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could solfa
you could solfa
he could solfa
we could solfa
you could solfa
they could solfa 	I could be solfaing
you could be solfaing
he could be solfaing
we could be solfaing
you could be solfaing
they could be solfaing	I could have solfaed
you could have solfaed
he could have solfaed
we could have solfaed
you could have solfaed
they could have solfaed	I could have been solfaing
you could have been solfaing
he could have been solfaing
we could have been solfaing
you could have been solfaing
they could have been solfaing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not solfa
you could not solfa
he could not solfa
we could not solfa
you could not solfa
they could not solfa 	I could not be solfaing
you could not be solfaing
he could not be solfaing
we could not be solfaing
you could not be solfaing
they could not be solfaing	I could not have solfaed
you could not have solfaed
he could not have solfaed
we could not have solfaed
you could not have solfaed
they could not have solfaed	I could not have been solfaing
you could not have been solfaing
he could not have been solfaing
we could not have been solfaing
you could not have been solfaing
they could not have been solfaing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I solfa?
could you solfa?
could he solfa?
could we solfa?
could you solfa?
could they solfa? 	could I be solfaing?
could you be solfaing?
could he be solfaing?
could we be solfaing?
could you be solfaing?
could they be solfaing? 	could I have solfaed?
could you have solfaed?
could he have solfaed?
could we have solfaed?
could you have solfaed?
could they have solfaed? 	could I have been solfaing?
could you have been solfaing?
could he have been solfaing?
could we have been solfaing?
could you have been solfaing?
could they have been solfaing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not solfa?
could you not solfa?
could he not solfa?
could we not solfa?
could you not solfa?
could they not solfa? 	could I not be solfaing?
could you not be solfaing?
could he not be solfaing?
could we not be solfaing?
could you not be solfaing?
could they not be solfaing? 	could I not have solfaed?
could you not have solfaed?
could he not have solfaed?
could we not have solfaed?
could you not have solfaed?
could they not have solfaed? 	could I not have been solfaing?
could you not have been solfaing?
could he not have been solfaing?
could we not have been solfaing?
could you not have been solfaing?
could they not have been solfaing?