This collection of worksheets will teach your students the difference between simple and complex subjects.

The subjects of sentences can be simple or complex, as these activity sheets will demonstrate. Activities include identifying whether specified subjects are simple or complex, identifying both complex and simple subjects in a given sentence, unscrambling sentences to find the simple or complex subjects, converting simple subjects into complex subjects, and more. Answer sheets have been provided for worksheets for instructors, but please note that in some cases, your students' answers will vary.

In many cases the simple and complete subject can be one in the same. We try to create sheets that don't have this happen often.

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Printable Simple and Complex Subjects Worksheets

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Sometimes They Are The Same

Are the underlined word(s) a simple subject (SS) or a complex subject (CS)? Write your answer on the line.

So Simple

Underline the simple subject in each sentence.

So Complex

Underline the complex subject. Write the simple subject on the line.

Simple or Complex?

Write in the bext answer that is provided with each sentence.

Simple Subjects

Unscramble each sentence. Write it on the line. Underline the simple subject.

Creating Complex Subjects

Underline the simple subject in each sentence. Then expand each sentence by turning the simple subject into a complex subject. Write your new sentence on the lines.

Simple and Complex Subjects

Identify the form of the subject present in each sentence.

More Identification

Are the underlined words the simple or complex subject? Write your answer on the line.

The Simple Subject

Circle the simple subject. Underline the simple predicate.

Sort Out The Subjects

Each word or set of words below is the subject of a sentence. Are they simple subjects or complex subjects? Sort them into the proper categories.

Expand That

Circle the simple subject in each sentence. Then write a new sentence, expanding the sentence to make the subject complex.

Underline and Then Circle

Underline the complex subject. Circle the simple subject.

Subject Blast

Some neat sentences are

Complex Subjects

Underline the complex subject in each sentence.

They Have Both

Each sentence below has a complex subject. Rewrite the sentences, deleting words as necessary so that the sentence only has a simple subject.

Picture Fills

Look at each picture. Write two sentences to describe it; one with a simple subject, and one with a complete subject.

Underline Simples

Underline the simple subject in each sentence.

In the End

Underline the complete subject. Write the simple subject on the line.

Find the Simple Subject

The Simple subject is a main word or a group of words that tells whom or what the sentence is about. The Complete subject is all the words that tell whom or what a sentence is about.

Unscrambles

Unscramble each sentence. Write it on the line. Underline the simple subject.

Creating Complete Subjects

Underline the simple subject in each sentence. Then expand each sentence by turning the simple subject into a complete subject. Write your new sentence on the lines.

What's Under That Line?

Are the underlined word(s) a simple subject (SS) or a complete subject (CS)? Write your answer on the line.

Take It To You

Are the underlined words the simple or complete subject? Write your answer on the line.

Circle the Simple Subject

Circle the simple subject. Underline the simple predicate.

What's in My Backpack?

Each word or set of words below is the subject of a sentence. Are they simple subjects or complete subjects?

Find It All

Find the simple subject in each sentence. Then rewrite the sentence, including only the simple subject.

Get Under It!

Underline the complete subject. Circle the simple subject.

What's That?

Are the underlined words the simple subject (SS), a complete subject (CS), or a direct object (DO)? Write your answer on the line.

Complete Subjects

Underline the complete subject in each sentence.

Delete That

Each sentence below has a complete subject. Rewrite the sentences, deleting words as necessary so that the sentence only has a simple subject.