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  • Math
    • Number Sense
    • Skip Counting
    • Addition
    • Subtraction
    • Multiplication
    • Factors & Multiples
    • Fractions
    • Decimals
    • Percents
    • Measurement & Data
    • Area and Perimeter
    • Geometry
    • Exponents & Powers
    • Pre-Algebra
    • Algebra
    • Statistics & Probability
  • Phonics
    • Letter Sounds
    • Beginning Sounds
    • Rhyming Words
    • CVC Words
    • Letter Blends
    • Digraphs
    • Long Vowel Sounds
    • Silent E Words
  • Grammar
    • Capitalization and Punctuation
    • Sentence Structure
    • Parts of Speech
    • Contractions
    • Word Changes

Home » Grades » 3rd Grade

3rd Grade Grammar Worksheets

Superthink 3rd grade worksheets are thoughtfully designed with structured layouts and clear practice to support growing confidence across core subjects. Resources emphasize accuracy, organization, and skill reinforcement as learning becomes more complex.

Classroom ActivitiesGrammarMathReadingWriting

Sentence Structure

Students combine silly subjects and predicates to make complete sentences.

Mix and Match: Silly Subject and Predicate Practice

2nd Grade3rd Grade4th Grade

Sentence StructureSubject and Predicate

Printable complete subject and predicate worksheet with images (i.e ring, donut, airplane). Students write their own complete subject and predicate for each to form full sentences.

Make a Sentence! Complete Subject and Predicate Worksheet

2nd Grade3rd Grade4th Grade

Sentence StructureSubject and Predicate

Simple subject vs complete subject worksheet titled “Who or What?” with sentences where students underline the complete subject and write the simple subject on a line.

Who Or What? Simple Subject vs Complete Subject Practice

2nd Grade3rd Grade4th Grade

Sentence StructureSubject and Predicate

Subject and predicate worksheet titled "Who Did What?" with sentences where students must circle the complete subject and underline the complete predicate.

Who Did What? Subject and Predicate Worksheet

1st Grade2nd Grade3rd Grade

Sentence StructureSubject and Predicate

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