The correct way to complete the sentence is:
"If I committed a mistake, I would correct it."
### Explanation:
- The structure follows the second conditional, which is used to talk about hypothetical situations in the present or future.
- The if-clause ("If I committed a mistake") uses the past tense ("committed") to describe a hypothetical situation.
- The main clause ("I would correct it") uses would + base verb to describe the result of that hypothetical situation.
So, the correct sentence is:
"If I committed a mistake, I would correct it."
