Okay kiddo, let's talk about a fancy thing called "syntactic movement".
When we talk, we use words to make sentences that make sense. Sometimes, we need to change the order of the words in a sentence to make it sound right. This is syntactic movement!
Let's use an example. Imagine you want to say "I ate the pizza".
But maybe you're talking to your friend who you know ate a hamburger earlier. If you said "I ate the pizza", your friend might get confused and think you're talking about their hamburger! So instead, you might change the word order and say "The pizza, I ate".
This is syntactic movement - you moved the word "pizza" to the beginning of the sentence so that it was clear what you were talking about.
Just like how you might move around your toys or furniture in your room to make it better, when we talk we sometimes move the words around to make our sentences sound better and clearer!