Learning English grammar can feel overwhelming for beginners. But the truth is, most students make the same mistakes again and again. These errors are not a sign of failure — they’re part of the learning process. The key is to recognize them early and correct them with practice. At My Planet English (MPE), we help students spot these mistakes and replace them with correct patterns, so they build confidence and fluency faster.

Below are the 10 most common grammar mistakes beginners make, with easy explanations and examples to help you avoid them.

1. Mixing Up “He/She/It” with Verbs

❌ She go to school every day.
✅ She goes to school every day.

Beginners often forget to add -s to verbs when using he, she, or it. It’s a small change but makes a big difference in accuracy.

2. Confusing “Is/Are”

❌ They is my friends.
✅ They are my friends.

Knowing when to use is (singular) and are (plural) is essential. A quick check: one person = is, many people = are.

3. Forgetting Articles (a, an, the)

❌ I bought book yesterday.
✅ I bought a book yesterday.

Articles are often missing because many languages don’t use them. But in English, they make sentences complete and natural.

4. Using the Wrong Preposition

❌ I am good in English.
✅ I am good at English.

Prepositions (in, on, at, to, for) are tricky because they don’t always translate directly. Memorizing common expressions helps.

5. Mixing Past and Present

❌ Yesterday I go to the park.
✅ Yesterday I went to the park.

When talking about the past, verbs must change. Beginners often forget to switch from go → went, eat → ate, etc.

6. Plural Mistakes

❌ I have two brother.
✅ I have two brothers.

Beginners sometimes forget to add -s or -es for plural nouns. Always check: one = singular, more than one = plural.

7. Wrong Word Order in Questions

❌ You are happy?
✅ Are you happy?

In English, questions need inversion (verb before subject). This is one of the most common speaking mistakes.

8. Overusing “Don’t” Instead of “Doesn’t”

❌ He don’t like pizza.
✅ He doesn’t like pizza.

Remember: with he, she, it → use doesn’t, not don’t.

9. Forgetting Auxiliary Verbs in Questions

❌ Where you live?
✅ Where do you live?

Questions in English usually need do/does/did. Without them, sentences sound incomplete.

10. Using Double Negatives

❌ I don’t need no help.
✅ I don’t need any help.

In English, two negatives cancel each other out. Use only one negative word per sentence.

How to Fix These Mistakes Faster

• Practice speaking daily: grammar becomes automatic with use.

• Listen and repeat: copy correct grammar from videos or audio.

• Write short sentences: then check them with a teacher or app.

• Focus on one rule at a time: don’t try to fix everything at once.

✅ At My Planet English, we don’t just correct mistakes — we teach students why they happen and how to avoid them in the future. By focusing on these 10 common grammar errors, beginners can make fast progress toward clear, confident English communication.