What is a sentence?

Have you ever said something to a friend and they understood exactly what you meant? That is what a sentence does! A sentence is a group of words that work together to share one complete idea. It is like a little package of meaning — everything the listener needs is right inside it.

Every sentence has two special rules. First, it always begins with a capital letter — that is a big letter at the start, like T or M. Second, it always ends with a punctuation mark, like a full stop (.), a question mark (?), or an exclamation mark (!). These rules help the reader know where one idea begins and where it ends.

Here is a first example: The cat sat on the mat. This is a sentence! It starts with a capital T, it tells us something complete (we know who — the cat — and what happened — sat on the mat), and it ends with a full stop. Here is a second example: I love sunny days! This is also a sentence — it starts with a capital I, shares a whole feeling, and ends with an exclamation mark.

Now here is something to think about: if someone said just the word "running" to you, would you know the whole story? Probably not! That one word on its own is not a sentence because it does not share a complete idea. A sentence always gives you the full picture. 🌟 Reflection question: Can you think of one sentence about your favourite animal? What letter does it start with, and what mark does it end with?