10 English Grammar Rules Beginners Need, With Real Examples

Priya Sharma

Priya Sharma writes English learning guides for ESL students. Pune-based language enthusiast.

Visual representation of the voice · not a photographic portrait

Quick answer: The core rules are: Subject + Verb + Object word order, adding -s to verbs after he/she/it, the right form of to be, a/an/the, plurals, questions and negatives with do/does/did, four basic tenses, adjectives before nouns, and in/on/at.↗ Share on X

The English grammar rules that matter most for beginners fit on one page: put words in the order Subject + Verb + Object, add -s to the verb after he, she, or it in the present, use "a" or "an" before one countable thing, use the right form of "to be" (am, is, are), and choose the correct tense for when something happens. If you learn these ten rules below and practice them, you'll avoid most of the mistakes that make English sound "off."

You don't need to memorize a thick grammar book. Each rule here comes with a short explanation, correct and incorrect examples, and a quick way to check yourself.

Rule 1: What order do words go in?

READ ALSOPick the Right English Tense for Daily Life Easily →Past Simple or Present Perfect? A Simple Rule That Works →When To Say A, An Or The In English: The Simple Rules →

Most English sentences follow this order:

Subject (who) + Verb (action) + Object (what or whom)

• Maria (subject) reads (verb) books (object).
• I drink coffee.
• The kids play soccer.

Many languages let you move words around. English mostly doesn't. Changing the order can change the meaning or make the sentence wrong.

• Correct: *The dog bit the man.*
• Different meaning: *The man bit the dog.*
• Wrong: *Books reads Maria.*

Quick check: Can you point to who does the action, then the action, then what receives it? If yes, your order is probably right.

Rule 2: Why do some verbs end in -s?

In the simple present, when the subject is he, she, it, or one person or thing, add -s to the verb.

Spelling changes to remember:

• Verbs ending in -ch, -sh, -s, -x, -o add -es: watch → watches, go → goes.
• Consonant + y changes to -ies: study → studies.
• have becomes has: She has a car.

Common mistake: *She work in a hospital.* → She works in a hospital.

Rule 3: How do you use am, is, and are?

READ ALSOEnglish Grammar: 12 Common Mistakes to Fix This Week →Simple Guide to English Grammar Rules for Beginners →The 12 English Grammar Mistakes Learners Repeat Most →

"To be" is the most used verb in English. It changes with the subject.

Examples:

• I am tired.
• She is a teacher.
• They are at home.
• We were late yesterday.

To make questions, move the verb to the front: *You are ready.* → Are you ready?

To make negatives, add not: *He is not (isn't) here.*

Common mistake: *I have 25 years.* → I am 25 years old. In English, you *are* an age; you don't *have* it.

Rule 4: When do you use a, an, and the?

These little words are called articles. They cause more trouble than almost anything else.

"A" and "an": one thing, not specific

Use them before one thing that can be counted, when you're not talking about a particular one.

• a before a consonant sound: a cat, a house, a university (sounds like "you")
• an before a vowel sound: an apple, an egg, an hour (the "h" is silent)

It's the sound that matters, not the letter.

"The": a specific thing

Use the when the listener knows which one you mean.

• I saw a movie. The movie was great. (First mention: a. Second mention: the.)
• Close the door. (The one in this room.)
• The sun is hot. (There's only one.)

No article

Don't use an article for general ideas with plural or uncountable nouns.

• Dogs are loyal. (Dogs in general.)
• I like music.
• Wrong: *The life is hard.* → Life is hard.

Rule 5: How do plurals work?

Most nouns just add -s: book → books, car → cars.

Some common words are irregular. Memorize these:

• man → men, woman → women, child → children
• person → people, foot → feet, tooth → teeth, mouse → mice

Some nouns can't be counted and have no plural: water, information, advice, furniture, money, homework.

• Wrong: *I need some advices.* → I need some advice.
• To count them, use a unit: a piece of advice, two glasses of water.

Rule 6: How do you ask a question?

There are two main patterns.

With "to be" or helper verbs (can, will, should)

Swap the subject and the verb.

• *She is happy.* → Is she happy?
• *You can swim.* → Can you swim?

With all other verbs

Add do, does, or did at the start. The main verb goes back to its basic form.

• *You like pizza.* → Do you like pizza?
• *He works here.* → Does he work here? (not *works*)
• *They left early.* → Did they leave early? (not *left*)

Question words go first: Where do you live? What does she want?

Rule 7: How do you make a sentence negative?

Follow the same logic as questions.

• With to be or helper verbs, add not after the verb: She is not busy. I can't come.
• With other verbs, use don't, doesn't, or didn't plus the base verb: I don't know. He doesn't eat meat. We didn't see it.

Avoid double negatives in standard English:

• Wrong: *I don't have nothing.*
• Right: I don't have anything. or I have nothing.

Rule 8: Which tense should you use?

Tense shows when something happens. As a beginner, focus on these four.

The past of regular verbs adds -ed: play → played. Many common verbs are irregular and must be memorized: go → went, eat → ate, see → saw, buy → bought, have → had.

Common mistake: *I am go to the store yesterday.* → I went to the store yesterday.

Rule 9: Where do adjectives go?

Adjectives describe nouns. In English, they come before the noun, and they never become plural.

• a red car (not *a car red*)
• two big houses (not *two bigs houses*)
• beautiful flowers

After "to be," the adjective comes after the verb: The car is red.

Rule 10: When do you use in, on, and at for time and place?

Prepositions are small words that show where or when. Start with this simple pattern: in is the biggest, on is medium, at is the most exact.

There are exceptions, but this table covers most everyday sentences.

The 6 most common beginner mistakes

The last one uses the present perfect tense, which you'll learn after the four basic tenses. For now, just remember that "since" + a starting point usually goes with *have/has* + past participle.

Your next step: a 10-day practice plan

Reading rules helps. Using them is what makes them stick.

1. Days 1–2: Rules 1–3. Write 10 sentences about your daily routine (*I wake up at 7. My sister works at a bank.*).

2. Days 3–4: Rules 4–5. Describe 10 things in your home using a, an, the, and plurals.

3. Days 5–6: Rules 6–7. Turn your routine sentences into questions and negatives.

4. Days 7–8: Rule 8. Write 3 sentences in each of the four tenses about work or school.

5. Days 9–10: Rules 9–10. Describe your week with adjectives and in/on/at.

After each day, check your sentences against the common-mistakes table. Then read them out loud. When a rule feels automatic, move on. When it doesn't, spend one more day on it before adding the next.

FAQ

What is the most important English grammar rule?

Word order. English sentences usually go Subject + Verb + Object, and changing that order can change the meaning or make the sentence wrong.

When do I use a or an?

Use a before a consonant sound and an before a vowel sound. It depends on the sound, not the letter: a university, an hour.

How long does it take to learn basic English grammar?

It depends on how much you practice. Studying one or two rules at a time and writing your own sentences each day works better than memorizing everything at once.