Hello! Can you check and see if these sentences are correct, thanks. 1. I have to treat my leg with a medicine. 2. He knocked him down, and stamping ran over him to help (sb). 3. Dead bodies lying right-and-left. 4. He used his superiority with his massive body structure over the feeble body of (sb) to do (smth). 5. An arrow stuck in between his eyes and he dropped dead. 6. Goblins' knees, Goblins's knees or Goblins knees. Which one is correct ? Goblins is plural.