could churn
Verbo regular: churn - churned- churned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could churn
you could churn
he could churn
we could churn
you could churn
they could churn 	I could be churning
you could be churning
he could be churning
we could be churning
you could be churning
they could be churning	I could have churned
you could have churned
he could have churned
we could have churned
you could have churned
they could have churned	I could have been churning
you could have been churning
he could have been churning
we could have been churning
you could have been churning
they could have been churning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not churn
you could not churn
he could not churn
we could not churn
you could not churn
they could not churn 	I could not be churning
you could not be churning
he could not be churning
we could not be churning
you could not be churning
they could not be churning	I could not have churned
you could not have churned
he could not have churned
we could not have churned
you could not have churned
they could not have churned	I could not have been churning
you could not have been churning
he could not have been churning
we could not have been churning
you could not have been churning
they could not have been churning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I churn?
could you churn?
could he churn?
could we churn?
could you churn?
could they churn? 	could I be churning?
could you be churning?
could he be churning?
could we be churning?
could you be churning?
could they be churning? 	could I have churned?
could you have churned?
could he have churned?
could we have churned?
could you have churned?
could they have churned? 	could I have been churning?
could you have been churning?
could he have been churning?
could we have been churning?
could you have been churning?
could they have been churning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not churn?
could you not churn?
could he not churn?
could we not churn?
could you not churn?
could they not churn? 	could I not be churning?
could you not be churning?
could he not be churning?
could we not be churning?
could you not be churning?
could they not be churning? 	could I not have churned?
could you not have churned?
could he not have churned?
could we not have churned?
could you not have churned?
could they not have churned? 	could I not have been churning?
could you not have been churning?
could he not have been churning?
could we not have been churning?
could you not have been churning?
could they not have been churning?