The conversation between human and AI assistant.
Why is it wrong to write "21 pilots" instead of "twenty one pilots"?
Okay, but what if someone doesn't know the correct way to write it?
It's understandable if someone doesn't know the correct way to write it, but it's important for them to learn and use the correct form in the future. There are many resources available, such as grammar guides or language apps, that can help people improve their grammar skills.