English verb conjugation
COULD ERODE

Regular verb: erode - eroded - eroded

Affirmation

Simple form	V-ing form
I could erode you could erode he could erode we could erode you could erode they could erode	I could be eroding you could be eroding he could be eroding we could be eroding you could be eroding they could be eroding
Perfect	V-ing perfect
I could have eroded you could have eroded he could have eroded we could have eroded you could have eroded they could have eroded	I could have been eroding you could have been eroding he could have been eroding we could have been eroding you could have been eroding they could have been eroding

Negation

Simple form	V-ing form
I could not erode you could not erode he could not erode we could not erode you could not erode they could not erode	I could not be eroding you could not be eroding he could not be eroding we could not be eroding you could not be eroding they could not be eroding
Perfect	V-ing perfect
I could not have eroded you could not have eroded he could not have eroded we could not have eroded you could not have eroded they could not have eroded	I could not have been eroding you could not have been eroding he could not have been eroding we could not have been eroding you could not have been eroding they could not have been eroding

Interrogative form

Simple form	V-ing form
could I erode? could you erode? could he erode? could we erode? could you erode? could they erode?	could I be eroding? could you be eroding? could he be eroding? could we be eroding? could you be eroding? could they be eroding?
Perfect	V-ing perfect
could I have eroded? could you have eroded? could he have eroded? could we have eroded? could you have eroded? could they have eroded?	could I have been eroding? could you have been eroding? could he have been eroding? could we have been eroding? could you have been eroding? could they have been eroding?

Interro-negative form

Simple form	V-ing form
could I not erode? could you not erode? could he not erode? could we not erode? could you not erode? could they not erode?	could I not be eroding? could you not be eroding? could he not be eroding? could we not be eroding? could you not be eroding? could they not be eroding?
Perfect	V-ing perfect
could I not have eroded? could you not have eroded? could he not have eroded? could we not have eroded? could you not have eroded? could they not have eroded?	could I not have been eroding? could you not have been eroding? could he not have been eroding? could we not have been eroding? could you not have been eroding? could they not have been eroding?