could tension
Verbo regular: tension - tensioned- tensioned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could tension
you could tension
he could tension
we could tension
you could tension
they could tension 	I could be tensioning
you could be tensioning
he could be tensioning
we could be tensioning
you could be tensioning
they could be tensioning	I could have tensioned
you could have tensioned
he could have tensioned
we could have tensioned
you could have tensioned
they could have tensioned	I could have been tensioning
you could have been tensioning
he could have been tensioning
we could have been tensioning
you could have been tensioning
they could have been tensioning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not tension
you could not tension
he could not tension
we could not tension
you could not tension
they could not tension 	I could not be tensioning
you could not be tensioning
he could not be tensioning
we could not be tensioning
you could not be tensioning
they could not be tensioning	I could not have tensioned
you could not have tensioned
he could not have tensioned
we could not have tensioned
you could not have tensioned
they could not have tensioned	I could not have been tensioning
you could not have been tensioning
he could not have been tensioning
we could not have been tensioning
you could not have been tensioning
they could not have been tensioning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I tension?
could you tension?
could he tension?
could we tension?
could you tension?
could they tension? 	could I be tensioning?
could you be tensioning?
could he be tensioning?
could we be tensioning?
could you be tensioning?
could they be tensioning? 	could I have tensioned?
could you have tensioned?
could he have tensioned?
could we have tensioned?
could you have tensioned?
could they have tensioned? 	could I have been tensioning?
could you have been tensioning?
could he have been tensioning?
could we have been tensioning?
could you have been tensioning?
could they have been tensioning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not tension?
could you not tension?
could he not tension?
could we not tension?
could you not tension?
could they not tension? 	could I not be tensioning?
could you not be tensioning?
could he not be tensioning?
could we not be tensioning?
could you not be tensioning?
could they not be tensioning? 	could I not have tensioned?
could you not have tensioned?
could he not have tensioned?
could we not have tensioned?
could you not have tensioned?
could they not have tensioned? 	could I not have been tensioning?
could you not have been tensioning?
could he not have been tensioning?
could we not have been tensioning?
could you not have been tensioning?
could they not have been tensioning?