Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must shoulder shoulder you must shoulder shoulder she must shoulder shoulder we must shoulder shoulder you must shoulder shoulder they must shoulder shoulder
V-ing form
I must be shoulder shouldering you must be shoulder shouldering she must be shoulder shouldering we must be shoulder shouldering you must be shoulder shouldering they must be shoulder shouldering
Perfect
I must have shoulder shouldered you must have shoulder shouldered she must have shoulder shouldered we must have shoulder shouldered you must have shoulder shouldered they must have shoulder shouldered
V-ing perfect
I must have been shoulder shouldering you must have been shoulder shouldering she must have been shoulder shouldering we must have been shoulder shouldering you must have been shoulder shouldering they must have been shoulder shouldering
Negation
Simple form
I must not shoulder shoulder you must not shoulder shoulder she must not shoulder shoulder we must not shoulder shoulder you must not shoulder shoulder they must not shoulder shoulder
V-ing form
I must not be shoulder shouldering you must not be shoulder shouldering she must not be shoulder shouldering we must not be shoulder shouldering you must not be shoulder shouldering they must not be shoulder shouldering
Perfect
I must not have shoulder shouldered you must not have shoulder shouldered she must not have shoulder shouldered we must not have shoulder shouldered you must not have shoulder shouldered they must not have shoulder shouldered
V-ing perfect
I must not have been shoulder shouldering you must not have been shoulder shouldering she must not have been shoulder shouldering we must not have been shoulder shouldering you must not have been shoulder shouldering they must not have been shoulder shouldering
Interrogative form
Simple form
must I shoulder shoulder? must you shoulder shoulder? must she shoulder shoulder? must we shoulder shoulder? must you shoulder shoulder? must they shoulder shoulder?
V-ing form
must I be shoulder shouldering? must you be shoulder shouldering? must she be shoulder shouldering? must we be shoulder shouldering? must you be shoulder shouldering? must they be shoulder shouldering?
Perfect
must I have shoulder shouldered? must you have shoulder shouldered? must she have shoulder shouldered? must we have shoulder shouldered? must you have shoulder shouldered? must they have shoulder shouldered?
V-ing perfect
must I have been shoulder shouldering? must you have been shoulder shouldering? must she have been shoulder shouldering? must we have been shoulder shouldering? must you have been shoulder shouldering? must they have been shoulder shouldering?
Interro-negative form
Simple form
must I not shoulder shoulder? must you not shoulder shoulder? must she not shoulder shoulder? must we not shoulder shoulder? must you not shoulder shoulder? must they not shoulder shoulder?
V-ing form
must I not be shoulder shouldering? must you not be shoulder shouldering? must she not be shoulder shouldering? must we not be shoulder shouldering? must you not be shoulder shouldering? must they not be shoulder shouldering?
Perfect
must I not have shoulder shouldered? must you not have shoulder shouldered? must she not have shoulder shouldered? must we not have shoulder shouldered? must you not have shoulder shouldered? must they not have shoulder shouldered?
V-ing perfect
must I not have been shoulder shouldering? must you not have been shoulder shouldering? must she not have been shoulder shouldering? must we not have been shoulder shouldering? must you not have been shoulder shouldering? must they not have been shoulder shouldering?