could yeast
Verbo regular: yeast - yeasted- yeasted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could yeast
you could yeast
he could yeast
we could yeast
you could yeast
they could yeast 	I could be yeasting
you could be yeasting
he could be yeasting
we could be yeasting
you could be yeasting
they could be yeasting	I could have yeasted
you could have yeasted
he could have yeasted
we could have yeasted
you could have yeasted
they could have yeasted	I could have been yeasting
you could have been yeasting
he could have been yeasting
we could have been yeasting
you could have been yeasting
they could have been yeasting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not yeast
you could not yeast
he could not yeast
we could not yeast
you could not yeast
they could not yeast 	I could not be yeasting
you could not be yeasting
he could not be yeasting
we could not be yeasting
you could not be yeasting
they could not be yeasting	I could not have yeasted
you could not have yeasted
he could not have yeasted
we could not have yeasted
you could not have yeasted
they could not have yeasted	I could not have been yeasting
you could not have been yeasting
he could not have been yeasting
we could not have been yeasting
you could not have been yeasting
they could not have been yeasting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I yeast?
could you yeast?
could he yeast?
could we yeast?
could you yeast?
could they yeast? 	could I be yeasting?
could you be yeasting?
could he be yeasting?
could we be yeasting?
could you be yeasting?
could they be yeasting? 	could I have yeasted?
could you have yeasted?
could he have yeasted?
could we have yeasted?
could you have yeasted?
could they have yeasted? 	could I have been yeasting?
could you have been yeasting?
could he have been yeasting?
could we have been yeasting?
could you have been yeasting?
could they have been yeasting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not yeast?
could you not yeast?
could he not yeast?
could we not yeast?
could you not yeast?
could they not yeast? 	could I not be yeasting?
could you not be yeasting?
could he not be yeasting?
could we not be yeasting?
could you not be yeasting?
could they not be yeasting? 	could I not have yeasted?
could you not have yeasted?
could he not have yeasted?
could we not have yeasted?
could you not have yeasted?
could they not have yeasted? 	could I not have been yeasting?
could you not have been yeasting?
could he not have been yeasting?
could we not have been yeasting?
could you not have been yeasting?
could they not have been yeasting?