could utter
Verbo regular: utter - uttered- uttered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could utter
you could utter
he could utter
we could utter
you could utter
they could utter 	I could be uttering
you could be uttering
he could be uttering
we could be uttering
you could be uttering
they could be uttering	I could have uttered
you could have uttered
he could have uttered
we could have uttered
you could have uttered
they could have uttered	I could have been uttering
you could have been uttering
he could have been uttering
we could have been uttering
you could have been uttering
they could have been uttering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not utter
you could not utter
he could not utter
we could not utter
you could not utter
they could not utter 	I could not be uttering
you could not be uttering
he could not be uttering
we could not be uttering
you could not be uttering
they could not be uttering	I could not have uttered
you could not have uttered
he could not have uttered
we could not have uttered
you could not have uttered
they could not have uttered	I could not have been uttering
you could not have been uttering
he could not have been uttering
we could not have been uttering
you could not have been uttering
they could not have been uttering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I utter?
could you utter?
could he utter?
could we utter?
could you utter?
could they utter? 	could I be uttering?
could you be uttering?
could he be uttering?
could we be uttering?
could you be uttering?
could they be uttering? 	could I have uttered?
could you have uttered?
could he have uttered?
could we have uttered?
could you have uttered?
could they have uttered? 	could I have been uttering?
could you have been uttering?
could he have been uttering?
could we have been uttering?
could you have been uttering?
could they have been uttering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not utter?
could you not utter?
could he not utter?
could we not utter?
could you not utter?
could they not utter? 	could I not be uttering?
could you not be uttering?
could he not be uttering?
could we not be uttering?
could you not be uttering?
could they not be uttering? 	could I not have uttered?
could you not have uttered?
could he not have uttered?
could we not have uttered?
could you not have uttered?
could they not have uttered? 	could I not have been uttering?
could you not have been uttering?
could he not have been uttering?
could we not have been uttering?
could you not have been uttering?
could they not have been uttering?