Analyze the given sentence for any grammar mistakes.
John's mother and I have went to the store.
There is a grammar mistake in this sentence. The verb 'to go' is irregular and its past tense is 'went'. However, 'went' should not be used in conjunction with the auxiliary verb 'have'. The past participle form of the verb 'to go' should be used instead, making the sentence: "John's mother and I have gone to the store."
Complete the following task based on the instruction and optional input provided.### Instruction:
Analyze the given sentence for any grammar mistakes.

### Input:
John's mother and I have went to the store.

### Output:
There is a grammar mistake in this sentence. The verb 'to go' is irregular and its past tense is 'went'. However, 'went' should not be used in conjunction with the auxiliary verb 'have'. The past participle form of the verb 'to go' should be used instead, making the sentence: "John's mother and I have gone to the store."