- A complete subject is all the words that make up the subject. It includes all the words that tell whom or what the sentence is about.
- The simple subject is the key word or words in the complete subject of a sentence. The simple subject tells whom or what the sentence is about.
![group_image](https://smrt.sfo2.cdn.digitaloceanspaces.com/core/LMLA/KIDS/ENGL130Kids/unit05/Grammar%205-3/5-3g1.jpg)
The brown baby birds waited for their mother.
Complete subject: The brown baby birds
Simple subject: birds
![group_image](https://smrt.sfo2.cdn.digitaloceanspaces.com/core/LMLA/KIDS/ENGL130Kids/unit05/Grammar%205-3/5-3g2.jpg)
The big red truck zoomed down the road.
Complete subject: The big red truck
Simple subject: truck
![group_image](https://smrt.sfo2.cdn.digitaloceanspaces.com/core/LMLA/KIDS/ENGL130Kids/unit05/Grammar%205-3/5-3g3.jpg)
The brightly shining sun peeked out from behind the clouds.
Complete subject: The brightly shining sun
Simple subject: sun