Student or Learner
Can one say
a. We were very knocked about during the accident.
b. We were very much knocked about during the accident.
c. We were knocked very much about during the accident.
Here the sentences are in the passive voice.
Can one say
d. We were very knocked about when we came out of the wreck.
e. We were very much knocked about when we came out of the wreck.
f. We were knocked very much about when we came out of the wreck.
Here we have past participle adjectives. We were in a bad state when we came out of the wreck but the 'knocking about' was over well before we came out.
They don't work for me. In BrE, "to knock about/around" is used in informal language to mean "to hang around", "to spend time".
My friend Kev is knocking around with his mate Terry this weekend.
When I was a kid, I used to knock about with a huge group of boys.
In your context, I would expect something like "When we were rescued from the car accident/crash, we were badly bruised and battered; we had been thrown around in the car when it overturned".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.