English verb conjugation
COULD SHOULDER

Regular verb: shoulder - shouldered - shouldered

Affirmation

Simple form	V-ing form
I could shoulder you could shoulder he could shoulder we could shoulder you could shoulder they could shoulder	I could be shouldering you could be shouldering he could be shouldering we could be shouldering you could be shouldering they could be shouldering
Perfect	V-ing perfect
I could have shouldered you could have shouldered he could have shouldered we could have shouldered you could have shouldered they could have shouldered	I could have been shouldering you could have been shouldering he could have been shouldering we could have been shouldering you could have been shouldering they could have been shouldering

Negation

Simple form	V-ing form
I could not shoulder you could not shoulder he could not shoulder we could not shoulder you could not shoulder they could not shoulder	I could not be shouldering you could not be shouldering he could not be shouldering we could not be shouldering you could not be shouldering they could not be shouldering
Perfect	V-ing perfect
I could not have shouldered you could not have shouldered he could not have shouldered we could not have shouldered you could not have shouldered they could not have shouldered	I could not have been shouldering you could not have been shouldering he could not have been shouldering we could not have been shouldering you could not have been shouldering they could not have been shouldering

Interrogative form

Simple form	V-ing form
could I shoulder? could you shoulder? could he shoulder? could we shoulder? could you shoulder? could they shoulder?	could I be shouldering? could you be shouldering? could he be shouldering? could we be shouldering? could you be shouldering? could they be shouldering?
Perfect	V-ing perfect
could I have shouldered? could you have shouldered? could he have shouldered? could we have shouldered? could you have shouldered? could they have shouldered?	could I have been shouldering? could you have been shouldering? could he have been shouldering? could we have been shouldering? could you have been shouldering? could they have been shouldering?

Interro-negative form

Simple form	V-ing form
could I not shoulder? could you not shoulder? could he not shoulder? could we not shoulder? could you not shoulder? could they not shoulder?	could I not be shouldering? could you not be shouldering? could he not be shouldering? could we not be shouldering? could you not be shouldering? could they not be shouldering?
Perfect	V-ing perfect
could I not have shouldered? could you not have shouldered? could he not have shouldered? could we not have shouldered? could you not have shouldered? could they not have shouldered?	could I not have been shouldering? could you not have been shouldering? could he not have been shouldering? could we not have been shouldering? could you not have been shouldering? could they not have been shouldering?