Choose one of the following text example and correct any grammar mistakes.
Yesterday I went to the store to by some vegetables
Yesterday, I went to the store to buy some vegetables.
Complete the following task based on the instruction and optional input provided.### Instruction:
Choose one of the following text example and correct any grammar mistakes.

### Input:
Yesterday I went to the store to by some vegetables

### Output:
Yesterday, I went to the store to buy some vegetables.