There is one mistake in this sentence. Instead of "had forgot," the correct verb conjugation is "had forgotten". Here is the corrected sentence:

She went to the store to buy food but had forgotten her wallet.
She went to the store to buy food but had forgot her wallet.
### Instruction:
Point out the mistakes in the following sentence and provide the corrections.

### Input:
She went to the store to buy food but had forgot her wallet.

### Response:
