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Teacher Tips and Answers

Writing Complete Sentences

fly fish

A sentence needs to have a subject, which tells what the sentence is about.

Lucas went fishing.

      (The subject is Lucas—what the sentence is about.)

A sentence also needs to have a verb, which tells what the subject is doing or being.

Lucas spotted a flying fishing.

      (The verb is spotted—what Lucas did.)

A sentence also must express a complete thought. The words below have a subject and verb, but do not express a complete thought.

Although he saw the fish.

      (Yes, what about it?)

Although he saw the fish, he couldn't believe it.

      (The incomplete thought is joined to a complete sentence.)

When you write, make sure each sentence has a subject and verb and expresses a complete thought. Otherwise, it is a sentence fragment.

Find subjects and verbs.

Read each sentence. Write down its subject and verb. Make a copy of this Google doc.

  1. A fish leaped out of the water.

    Subject?

    Verb?

  2. It flew away.

    Subject?

    Verb?

  3. Lucas groaned.

    Subject?

    Verb?

  4. He looked at his useless fishing pole.

    Subject?

    Verb?

  5. A net would have been better for these fish.

    Subject?

    Verb?

  6. Lucas grabbed a worm.

    Subject?

    Verb?

  7. He tossed it into the air.

    Subject?

    Verb?

  8. A fish flew up to it.

    Subject?

    Verb?

  9. The fish soared away.

    Subject?

    Verb?

  10. Lucas changed his dinner plans to pizza.

    Subject?

    Verb?

Fix sentences.

Read each sentence fragment. Use your imagination to create a sentence, adding a subject or verb or complete thought. Make a copy of this Google doc.

baking cookies
  1. In her mom's kitchen, Maggie.

  2. Made cookies all day last Saturday.

  3. Baked chocolate chip cookies and peanut butter cookies.

  4. When I asked if she was done baking.

  5. Loves her lemon bars.

  6. If you want to know my favorite cookies.

  7. When Maggie really gets rolling.

  8. Asked her for cookies for the neighbors.

  9. After she finished her last batch.

  10. Into everyone's heart.

Write complete sentences.

Write four complete sentences about your favorite foods. Underline each subject once and each verb twice. Make sure each sentence expresses a complete thought.

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