Sentence Structure Worksheets | Language Arts Activities - Free Printable

Let’s go through each sentence one by one. Remember:

- Simple subject = the smallest noun, pronoun, or gerund that does the action (just the main person/thing).
- Simple predicate = the verb or verb phrase in its simplest form (what the subject is doing).

We’ll underline the simple subject and circle the simple predicate for each sentence.

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1. Doug usually plays video games around this time.
→ Simple subject: Doug
→ Simple predicate: plays

2. Today is different though.
→ Simple subject: Today
→ Simple predicate: is

3. Today Doug is cleaning up messes around the house.
→ Simple subject: Doug
→ Simple predicate: is cleaning

4. His mother gave him a long list of chores.
→ Simple subject: mother
→ Simple predicate: gave

5. The long list seemed overwhelming to Doug.
→ Simple subject: list
→ Simple predicate: seemed

6. His sister, Katie, finished her chores a long time ago.
→ Simple subject: Katie (or “sister” — but since “Katie” is the specific name, it’s better)
→ Simple predicate: finished

7. Doug has been stalling.
→ Simple subject: Doug
→ Simple predicate: has been stalling

8. Katie helped her brother Doug with his chores a little bit.
→ Simple subject: Katie
→ Simple predicate: helped

9. That made Doug happier than a dog in a dirt pile.
→ Simple subject: That
→ Simple predicate: made

10. Soon though he was playing video games on the couch again.
→ Simple subject: he
→ Simple predicate: was playing

11. Many of Doug's chores were still incomplete.
→ Simple subject: chores
→ Simple predicate: were

12. Then Katie saw her brother playing video games without her.
→ Simple subject: Katie
→ Simple predicate: saw

13. Having felt used, Katie left her brother alone.
→ Simple subject: Katie
→ Simple predicate: left

14. A little later in the afternoon, Doug went to get a glass of juice from the refrigerator.
→ Simple subject: Doug
→ Simple predicate: went

15. He saw Katie playing with her dolls in her bedroom.
→ Simple subject: He
→ Simple predicate: saw

16. At first he was upset with her.
→ Simple subject: he
→ Simple predicate: was

17. Then Doug realized his mistake in not helping her.
→ Simple subject: Doug
→ Simple predicate: realized

18. Holding his head down in regret, Doug apologized to his sister Katie.
→ Simple subject: Doug
→ Simple predicate: apologized

19. Katie graciously accepted his apology.
→ Simple subject: Katie
→ Simple predicate: accepted

20. Together, both of them finished the list of chores.
→ Simple subject: them (or “both” — but “them” is the pronoun doing the action)
→ Simple predicate: finished

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For sentences 21–25, you need to write your own sentences and mark the simple subject and predicate. Here are five examples you can use (you can copy these or make your own):

21. My cat sleeps all day.
→ Subject: cat | Predicate: sleeps

22. She runs fast every morning.
→ Subject: She | Predicate: runs

23. The sun shines brightly today.
→ Subject: sun | Predicate: shines

24. We eat lunch at noon.
→ Subject: We | Predicate: eat

25. They play soccer after school.
→ Subject: They | Predicate: play

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Final Answer:

Here are the simple subjects (underlined) and simple predicates (circled) for each sentence:

1. _Doug_ ⭕plays⭕
2. _Today_ ⭕is⭕
3. _Doug_ ⭕is cleaning⭕
4. _mother_ ⭕gave⭕
5. _list_ ⭕seemed⭕
6. _Katie_ ⭕finished⭕
7. _Doug_ ⭕has been stalling⭕
8. _Katie_ ⭕helped⭕
9. _That_ ⭕made⭕
10. _he_ ⭕was playing⭕
11. _chores_ ⭕were⭕
12. _Katie_ ⭕saw⭕
13. _Katie_ ⭕left⭕
14. _Doug_ ⭕went⭕
15. _He_ ⭕saw⭕
16. _he_ ⭕was⭕
17. _Doug_ ⭕realized⭕
18. _Doug_ ⭕apologized⭕
19. _Katie_ ⭕accepted⭕
20. _them_ ⭕finished⭕

For 21–25, here are sample sentences with marked parts:

21. _cat_ ⭕sleeps⭕
22. _She_ ⭕runs⭕
23. _sun_ ⭕shines⭕
24. _We_ ⭕eat⭕
25. _They_ ⭕play⭕