Grammar Boss Battle

Learn the rules, use the hacks, beat the traps, and build a streak. This guide is designed for students to use alone: every level teaches, tests, and explains.

1. Sentence Power

Full thought: can stand alone. The robot danced.
Half thought: leaves you waiting. Because the robot danced...

Twin Elimination: Period and semicolon do the same joining job between two complete sentences. If two choices differ only by period vs. semicolon in the same place, both cannot be the one unique SAT answer.

2. FANBOYS

Comma + for, and, nor, but, or, yet, so can join two complete sentences.

Trap: A comma alone cannot glue two full sentences together. That is a comma splice.

3. Colon / Single Dash

Think drumroll. The part before the colon or single dash must already be a complete sentence. Then comes a list, explanation, or reveal.

Right: She packed three essentials: water, snacks, and a charger.

4. Modifier Nametag

The opening phrase describes the noun immediately after the comma.

Front Flip Hack: Put each answer choice directly after the opening phrase and ask: “Can this noun logically do or be what the phrase says?”

5. Verbs

First decide: agreement or tense?

Safe Odd Verb Out: Spot a form that differs from the others, then confirm it with the real subject. Never choose the odd form automatically.

For tense, use nearby timeline clues. Past perfect had + past participle is for an earlier past action before another past action.

6. Pronouns

Find the real noun first, then match number and meaning.

Sandwich Skip: Temporarily cross out extra information between commas or dashes to find the true subject or antecedent.

7. Apostrophes

Two jobs only: ownership and contractions.

Of-the Test: If “of the” works, possession is probably involved.
The tail of the dog → the dog’s tail.

8. Transitions

Read the idea before and after. Is the relationship continuing, cause/effect, or contrast?

Do not choose a transition just because it “sounds formal.” Choose the relationship first.

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