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Learn when to use your "polite" words and when it's okay to be casual!
Have you ever noticed that you talk one way to your best friend and another way to your teacher? People have been doing this for a very long time! Let's look at how people started using formal and informal language.
So here is the big question: How do you know which words to use and when? That is what this whole lesson is about!
Formal English is the polite, careful way we talk or write. We use it with teachers, principals, and grown-ups we don't know well. Informal English is the relaxed, fun way we talk with friends and family. Both kinds are good! You just need to know when to use each one.
Look at this picture. On one side you can see formal words. On the other side you can see informal words. They mean the same thing, but they sound very different!
See how the words on the left side sound more polite? The words on the right side sound more like what you'd say to a friend. Both sides are English. You just pick the right side for the right time!
When you need to talk or write, ask yourself three easy questions. These questions help you decide if you should use formal or informal English.
These three questions are like a little checklist in your head. If you are at school writing a report, the answers tell you to use formal English. If you are at recess talking to your buddy, the answers tell you informal English is just right!
Let's look at even more examples! The table below shows things people say or write. You can see how the formal version is different from the informal version.
| Situation | Formal | Informal |
|---|---|---|
| Saying hello | "Good morning, Mrs. Lee." | "Hi!" |
| Asking for help | "Excuse me, could you help me?" | "Hey, can you help?" |
| Saying you like something | "That is wonderful." | "That's so cool!" |
| Starting a letter | "Dear Mr. Smith," | "Hey Jake!" |
| Ending a letter | "Sincerely, Anna" | "Later! — Anna" |
| Saying no | "No, thank you." | "Nah." |
Notice that language isn't just two boxes. Sometimes you can be a little bit formal but not super fancy. That's the middle of the bar above! For example, saying "Hi, Mrs. Lee" is a bit formal and a bit casual at the same time.
Imagine you want to ask your teacher if you can go to the bathroom. Let's figure out the best way to say it, step by step.
Formal and informal English both have times when they work great and times when they don't fit. Let's compare!
| Formal English | Informal English | |
|---|---|---|
| Great for… | School reports, thank-you cards, talking to adults | Playing with friends, texting family, telling jokes |
| Sounds like… | Polite, careful, grown-up | Fun, easy, quick |
| Uses… | Full sentences, "please" and "thank you," no slang | Short words, nicknames, slang like "cool" or "awesome" |
| Not the best fit for… | Playing tag on the playground (too stiff!) | A letter to the principal (too casual!) |
Right now you are learning to spot the difference between formal and informal English. As you get bigger, you will use this skill in even more places! Here is what comes next:
| What You Learn Now | What Comes Later |
|---|---|
| Picking polite words for teachers | Writing business letters and emails |
| Using "please" and "thank you" | Giving speeches and presentations |
| Knowing when slang is okay | Choosing a writing style for different readers |
| Writing a neat thank-you card | Writing a college essay someday! |
Learning about formal and informal English now is like learning to ride a bike with training wheels. Soon you'll be zooming along without even thinking about it! Every time you pick the right words for the right moment, you are becoming a stronger reader and writer.
Let's see what you learned! Try each question. When you're ready, click "Show Answer" to check.
Today you learned that there are two main ways to use English. Formal English is the polite, careful kind — you use it with teachers, principals, and grown-ups, and in places like the classroom or in a letter. Informal English is the relaxed, friendly kind — you use it with friends and family, on the playground, or in a quick note.
To pick the right one, ask yourself three questions: Who am I talking to? Where am I? Why am I writing or talking? Neither kind is wrong — they are just different, like wearing fancy shoes or comfy sneakers. You are now a word-chooser superstar!