Conjugación del verbo inglés
COULD SHUTTER

Verbo regular: shutter - shuttered - shuttered

Afirmación

Forma simple	Forma con V-ing
I could shutter you could shutter he could shutter we could shutter you could shutter they could shutter	I could be shuttering you could be shuttering he could be shuttering we could be shuttering you could be shuttering they could be shuttering
Perfecto	Perfecto con V-ing
I could have shuttered you could have shuttered he could have shuttered we could have shuttered you could have shuttered they could have shuttered	I could have been shuttering you could have been shuttering he could have been shuttering we could have been shuttering you could have been shuttering they could have been shuttering

Negación

Forma simple	Forma con V-ing
I could not shutter you could not shutter he could not shutter we could not shutter you could not shutter they could not shutter	I could not be shuttering you could not be shuttering he could not be shuttering we could not be shuttering you could not be shuttering they could not be shuttering
Perfecto	Perfecto con V-ing
I could not have shuttered you could not have shuttered he could not have shuttered we could not have shuttered you could not have shuttered they could not have shuttered	I could not have been shuttering you could not have been shuttering he could not have been shuttering we could not have been shuttering you could not have been shuttering they could not have been shuttering

Forma interrogativa

Forma simple	Forma con V-ing
could I shutter? could you shutter? could he shutter? could we shutter? could you shutter? could they shutter?	could I be shuttering? could you be shuttering? could he be shuttering? could we be shuttering? could you be shuttering? could they be shuttering?
Perfecto	Perfecto con V-ing
could I have shuttered? could you have shuttered? could he have shuttered? could we have shuttered? could you have shuttered? could they have shuttered?	could I have been shuttering? could you have been shuttering? could he have been shuttering? could we have been shuttering? could you have been shuttering? could they have been shuttering?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not shutter? could you not shutter? could he not shutter? could we not shutter? could you not shutter? could they not shutter?	could I not be shuttering? could you not be shuttering? could he not be shuttering? could we not be shuttering? could you not be shuttering? could they not be shuttering?
Perfecto	Perfecto con V-ing
could I not have shuttered? could you not have shuttered? could he not have shuttered? could we not have shuttered? could you not have shuttered? could they not have shuttered?	could I not have been shuttering? could you not have been shuttering? could he not have been shuttering? could we not have been shuttering? could you not have been shuttering? could they not have been shuttering?