Grade 1 - Spelling

Grade 1 Endings -s, -ed, and -ing Worksheet

6 printable versions - Building Confidence - About 8 minutes each

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Endings -s, -ed, and -ing

Grade 1 - Spelling - Building Confidence

Worksheet 1

  1. Which ending changes cat to mean “more than one cat”?

    4 letter boxes, 1 of them empty.A row of 4 boxes for the letters of a word. 1 box is empty and drawn with a dashed edge for the missing letters.cat

  2. Add -ed to help. Write the complete word.

    A row containing 6 empty writing cells.A row of 6 boxes for the letters of a word. 6 boxes are empty and drawn with a dashed edge for the missing letters.

  3. What base word is inside looking?

    7 letter boxes.A row of 7 boxes for the letters of a word. Each box holds one letter.looking

  4. Choose the correct spelling for “more than one book.”

    A row containing 5 empty letter boxes.A row of 5 boxes for the letters of a word. 5 boxes are empty and drawn with a dashed edge for the missing letters.

  5. Spell the -ed word that means “did walk before now.”

    6 letter boxes, 2 of them empty.A row of 6 boxes for the letters of a word. 2 boxes are empty and drawn with a dashed edge for the missing letters.walk

  6. Which ending changes cook to mean “is cooking now”?

    7 letter boxes, 3 of them empty.A row of 7 boxes for the letters of a word. 3 boxes are empty and drawn with a dashed edge for the missing letters.cook

  7. Add -s to bus. Write the complete word.

    A row containing 5 empty writing cells.A row of 5 boxes for the letters of a word. 5 boxes are empty and drawn with a dashed edge for the missing letters.

  8. What base word is inside stopped?

    7 letter boxes.A row of 7 boxes for the letters of a word. Each box holds one letter.stopped

  9. Choose the correct spelling for “is riding now.”

    A row containing 6 empty letter boxes.A row of 6 boxes for the letters of a word. 6 boxes are empty and drawn with a dashed edge for the missing letters.

  10. Spell the -ed word that means “did try before now.”

    5 letter boxes, 2 of them empty.A row of 5 boxes for the letters of a word. 2 boxes are empty and drawn with a dashed edge for the missing letters.tri
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About this worksheet

Inflectional endings change a word's number or time without changing its core meaning. First graders need to connect -s with more than one, -ed with the past, and -ing with an action happening now. The first challenge is choosing the ending that matches the sentence meaning. The next is attaching it accurately, including common changes such as buses, stopped, and making. This worksheet rotates among selecting a suffix, forming a complete word, removing an ending to find the base, and checking a changed spelling. Support items focus on straightforward additions. Standard and challenge practice include doubling, adding ES, changing Y, and dropping silent E, but the purpose remains inflection. Ask your child to name the base word before adding anything. Then read the clue for number or time and inspect the join between the base and ending rather than copying letters automatically.

What your child will learn

  • Choose -s, -ed, or -ing from meaning
  • Attach an ending to a base word
  • Find a base inside an inflected word
  • Apply common spelling changes at the join

Worked example

Jump happened before now, so add -ed to jump and spell jumped.

Common mistake

Choosing an ending by sound alone without checking whether the clue means plural, past, or happening now.

Helpful hint

Find the base word, decide number or time, then attach the ending.

Compound WordsHigh-Frequency Spelling Words

Questions parents ask

What is the most common mistake with endings -s, -ed, and -ing?
Choosing an ending by sound alone without checking whether the clue means plural, past, or happening now.
How can I help my child with endings -s, -ed, and -ing?
Find the base word, decide number or time, then attach the ending.
Are these 1st grade spelling worksheets free to print?
Yes. All 6 printable versions on this page are free to download and print, with no account needed.