Now, let's talk about some quirky exceptions to the rule. In informal spoken English, them is often used as a preposition, like "I'm meeting them at the park." It's not "technically" correct, but it's a common way of speaking that's easy to understand. And, let's be real, who doesn't love a good grammar exception?
What is a Preposition: Types and Examples » Onlymyenglish.com
In some cases, them can even be used as a prepositional phrase, like "I'm going to the store with them." It's a clever way of using language to convey meaning, and it's a great example of how language is all about context. So, the next time you use them as a preposition, don't worry – you're just speaking like a native!