Grammar & Punctuation Cheat Sheet

A printable reference covering sentence parts, clauses, commas, apostrophes, quotation marks, semicolons, colons, and capitalization for grades 6-9.

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This cheat sheet covers the grammar and punctuation rules students need to write clear, correct sentences. It helps students check sentence structure, punctuation choices, capitalization, and common usage problems. Students in grades 6 through 9 can use it while drafting, revising, editing, or preparing for grammar assessments. The most important ideas are sentence completeness, correct clause joining, and punctuation that matches meaning. A complete sentence needs a subject, a predicate, and a complete thought. Commas, semicolons, colons, apostrophes, and quotation marks each have specific jobs. Careful punctuation makes writing easier to read and prevents confusing or incomplete sentences.

Key Facts

Complete sentence = subject + predicate + complete thought.
Independent clause = subject + verb + complete thought, as in "The bell rang."
Dependent clause = subject + verb + incomplete thought, as in "Because the bell rang."
Use a comma before a coordinating conjunction when joining two independent clauses: independent clause, FANBOYS independent clause.
Use a semicolon to join closely related independent clauses: independent clause; independent clause.
Use an apostrophe plus s to show singular possession: the student’s notebook.
Use quotation marks around a speaker’s exact words, and place commas or periods inside the closing quotation mark in American English.
Capitalize the first word of a sentence, the pronoun I, proper nouns, and major words in titles.

Vocabulary

Subject: The subject is the person, place, thing, or idea that the sentence is about.
Predicate: The predicate tells what the subject does, is, has, or feels.
Independent Clause: An independent clause has a subject and a verb and can stand alone as a complete sentence.
Dependent Clause: A dependent clause has a subject and a verb but cannot stand alone as a complete sentence.
Coordinating Conjunction: A coordinating conjunction connects equal words, phrases, or clauses, and the common ones are for, and, nor, but, or, yet, and so.
Possessive Noun: A possessive noun shows ownership or relationship, usually by using an apostrophe.

Common Mistakes to Avoid

Comma splice: joining two complete sentences with only a comma is wrong because a comma alone is not strong enough to connect independent clauses.
Sentence fragment: writing a dependent clause as a full sentence is wrong because it does not express a complete thought.
Missing comma after an introductory phrase: leaving out the comma can make the sentence harder to follow because the reader may not know where the main idea begins.
Confusing plurals and possessives: adding an apostrophe to make a regular plural is wrong because apostrophes usually show ownership or missing letters.
Incorrect quotation punctuation: placing commas and periods outside quotation marks in American English is usually wrong because they belong inside the closing quotation mark.

Practice Questions

1 In the sentence "After the storm ended, the team counted 18 broken branches and 7 flooded paths," identify the introductory phrase and the two numbers used as details.
2 Correct this sentence by adding the missing punctuation: The club sold 24 tickets on Friday 31 tickets on Saturday and 19 tickets on Sunday.
3 Choose the correct punctuation for this sentence and explain the rule: Maya finished her essay ___ she printed a clean copy.
4 Explain why "Because the final chapter was surprising" is not a complete sentence, and describe one way to fix it.