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Building sentences step by step

Build strong sentences from who, what they do, and extra details like where, when and how.

Get the whole book: English for classes 3 to 5 (5 lessons, free to print)

Let us begin

The big idea

A sentence is like a small house. It needs a strong base, and then we can add rooms. Let us build a sentence one piece at a time.

Every sentence needs two parts. The first part tells us who or what the sentence is about. This is the subject. The second part tells us what the subject does. This is the verb part.

The shortest sentence can be just two words: Birds fly. Birds is the subject. Fly is the verb.

Now we can add details. Answer the questions where, when and how. Birds fly in the sky. Birds fly in the sky every morning. Birds fly quickly in the sky every morning.

A sentence starts with a capital letter and ends with a full stop, a question mark or an exclamation mark. Always read your sentence aloud to check that it makes sense.

A sentence growingThree stair steps. The first says Birds fly. The second adds in the sky. The third adds every morning. Birds fly. Birds fly in the sky. Birds fly in the sky every morning. Step 1 Step 2 Step 3
Add one detail at a time to grow a sentence.

Worked examples

See how it works

  1. Building up

    Step 1: Dogs bark. Step 2: Dogs bark loudly. Step 3: Dogs bark loudly at night. Each step adds one detail and the sentence stays correct.

  2. Finding the parts

    In the sentence "The little girl sings a song", the subject is The little girl and the verb part is sings a song.

  3. Fixing a broken sentence

    "Plays in the park" has no subject. We add one: The children play in the park. "The children in the park" has no verb, so we add one too.

Try it at home

Sentence stairs

You will need

  • Paper
  • A pencil
  • Colour pencils

What to do

  1. Draw a staircase with five steps.
  2. On step 1 write a short sentence such as Cats sleep.
  3. On each next step, add one more detail, such as where, when or how.
  4. Read the longest sentence out loud.
  5. Make a new staircase with a different sentence.

Ask a grown-up: An adult can read your sentences and help check capital letters and full stops.

Practice sheet

Check what you learned

Write your answers in a notebook, or print this sheet and write on it. When you finish, mark your work with the answer key.

Practice sheet: Building sentences step by step (Classes 3-5, English)

  1. What are the two main parts of a sentence?
  2. Name the subject in: Birds fly.
  3. Name the verb in: The boy runs fast.
  4. Add a place to this sentence: The cat sleeps.
  5. Add a time to this sentence: We go to school.
  6. Is "Plays in the park" a full sentence? Why or why not?
  7. Make a full sentence from these words: children, play, the, in, garden, the.
  8. What should a sentence start with?
  9. Name the three marks that can end a sentence.
  10. Grow this sentence in three steps: Dogs bark.

Answer key

Answers: Building sentences step by step

Do the practice sheet first, then check here. If an answer is different from yours, read the lesson again and try once more.

  1. The subject and the verb part.
  2. Birds.
  3. runs.
  4. Sample answer: The cat sleeps on the sofa.
  5. Sample answer: We go to school in the morning.
  6. No, it has no subject. We do not know who plays.
  7. The children play in the garden.
  8. A capital letter.
  9. A full stop, a question mark and an exclamation mark.
  10. Sample answer: Dogs bark. Dogs bark loudly. Dogs bark loudly at night.

What next

Keep learning

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All 5 english lessons for classes 3 to 5 on one page, with every practice sheet and answer key, ready to print.

English for classes 3 to 5

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