Sentence Builder

Write sentences that are correct, clear, and alive. Reed-Kellogg Diagramming

Practice Workbook
Student Name:
Bones
Heart
Music
Polish
Together
Difference
0/6
Build It Right
1

The Bones — Grammar

Every sentence needs a subject and a verb.

Every sentence needs a subject (who or what) and a verb (what happens). Without both, it's not a sentence — it's a fragment. Diagramming reveals the skeleton of your sentence.

Quick test: Can it stand alone and make sense? If yes → sentence. If no → fragment.

Warm-Up: Fragment or Sentence?

Read each group of words. Tap Sentence or Fragment — then see why!

"Whenever she opened that drawer."

"A letter that arrived too late."

"She folded the letter carefully."

"Waiting by the window every morning."

"Before anyone noticed the difference."

"An old woman sitting alone on the porch."

Find the subject and verb:

"The photograph had faded, but the smile in it still felt warm."

Compound Sentence — Two Independent Clauses

photographhad fadedTheCLAUSE 1butsmilefeltwarmthestillin itCLAUSE 2SubjectVerbPred. AdjectiveConjunction

Notice how the diagram splits the compound sentence into two independent baselines, connected by the conjunction "but".

Practice: Find the Subject and Verb

For each sentence, write the subject and the main verb. Then check your answer.

"His hands shook slightly."

"The old house had been sold."

"Years slip past like pages."

Write a complete sentence with a clear subject and verb:

2

The Heart — Meaning

A correct sentence isn't enough. A beautiful sentence says something worth reading.

A correct sentence isn't enough. A beautiful sentence says something worth reading. Add who specifically, what exactly, and why it matters.

The three questions: Who specifically? What exactly? Why does it matter? Answer all three and your sentence comes alive.

Warm-Up: Spot the Vivid Sentence

Each pair has one vague sentence and one vivid sentence. Tap the vivid one!

Which sentence gives you a clearer picture?

Which sentence shows the feeling instead of naming it?

Which sentence uses sensory detail?

Weak vs. Strong — see the difference in the diagram:

The Heart — Meaning: Weak vs. Strong Sentence

"Time went fast." — WEAK

Timewentfast3 words. 1 idea. No image.

"The years slipped past like pages blown by wind…" — STRONG

yearsslippedthepastlike pagesblown by windRich modifiers + simile = image + emotion

The weak sentence has a bare baseline. The strong sentence builds depth with rich modifiers, a simile, and an absolute phrase.

Practice: Add a Detail

Each sentence below is correct but vague. Expand it using the prompt. Then see an example.

Start: "She remembered something."

Add WHAT exactly she remembered and WHY it mattered.

Start: "The photograph was old."

Add WHAT specifically showed its age — be visual.

Start: "She smiled."

Add WHAT kind of smile and WHAT it meant.

Upgrade this sentence:

Weak version: "Things were different now."

My stronger version:

Meaning check:

3

The Music — Rhythm

English has a beat. Good writers hear it.

English has a beat. Good writers hear it. Read your sentence out loud — does it flow, or does it stumble? Rhythm comes from mixing sentence lengths, using the power of three, and ending on your strongest word.

Three ways to add rhythm:
  1. Mix short and long. A short sentence hits hard. A longer one lets the reader breathe and settle in.
  2. Use the power of three. Groups of three feel complete. "The house was quieter, smaller, and somehow older."
  3. End on the strongest word. The last word echoes longest.

The Music — Rhythm: Choppy vs. Flowing

CHOPPY: "She looked at the photo. It was old. She remembered that day. She smiled."

ShelookedItwasSherememberedShesmiled4 separate diagrams → repetitive, monotone structure

FLOWING: "She held the photograph gently, its edges soft with age, and smiled at a day she thought she had forgotten."

Sheheldphotographandsmiledgentlytheits edges soft with age (Absolute Phrase)at a day [she thought she had forgotten] (Rel. Clause)1 unified diagram → compound verb + absolute phrase + relative clause = rich, flowing structure

Choppy writing creates multiple disconnected, repetitive diagrams. Flowing writing weaves ideas into a single, unified structure with compound verbs and relative clauses.

Practice: Combine the Choppy Sentences

Each group of short sentences is choppy. Weave them into one flowing sentence.

"She found the box."

"It was in the attic."

"It was dusty."

"She hadn't seen it in years."

Your flowing version:

"He laughed."

"It was short."

"It was quiet."

"It surprised her."

Your flowing version:

"The door opened."

"It creaked."

"Cold air came in."

"She shivered."

Your flowing version:

Practice: The Power of Three

Complete each sentence with three items. The third should feel like the most surprising or resonant one.

He spoke ___, ___, and ___.

Time had changed ___, ___, and ___.

Practice: Mix Short and Long

Write one short sentence and one long sentence on the same theme (time, memory, or change). Notice how the contrast creates rhythm.

Write a very short sentence (3–5 words) that hits hard:

Write a long sentence (15+ words) that builds to a quiet ending:

Rhythm self-check — read your sentences aloud:

Make It Sing
4

The Polish — Word Choice

Precise words do more work than big words.

Precise words do more work than big words. Choose the word that shows exactly what you mean. In diagramming, replacing a weak verb + adverb with a single vivid verb streamlines the structure and strengthens the impact.

Rule: Don't reach for the longest word. Reach for the truest one. A word is precise when it creates an image, not just a label.

The Polish — Word Choice: Vague vs. Precise

VAGUE

photographwasoldTimewentquicklyItfeltdifferent

PRECISE

photographwasyellowedTimedissolvedItfelthollow

In diagramming, replacing a weak verb + adverb with a single vivid verb streamlines the structure and strengthens the impact.

Warm-Up: Pick the Precise Word

The bold word is vague. Choose the best replacement from the options. (There may be more than one good answer!)

The house looked old.

The photograph was old.

Time went by quickly.

Practice: Swap the Vague Verb

The underlined phrase is weak. Choose the most vivid replacement.

The rain fell heavily.

The light changed slowly.

She thought about him a lot.

Replace the bold word with something more precise:

Write your own replacement — there's no single right answer, just more or less precise ones.

"The music was good." → The music was

"He spoke in a nice way." → He spoke

"The weather was bad." → The weather was

5

Put It All Together

Build one sentence with all four qualities.

Now build one sentence that has all four qualities: correct grammar, clear meaning, natural rhythm, and precise words. Use the step-by-step builder below, or jump straight to a sentence starter.

The four qualities: Bones (grammar) + Heart (meaning) + Music (rhythm) + Polish (word choice). A sentence that has all four is worth reading.

Build It Step by Step

Start with a bare-bones sentence and add one quality at a time. Each step builds on the last.

Step 1 — The Bones

Write a simple sentence with a clear subject and verb. Keep it short.

Step 2 — Add Heart

Expand your sentence: add who specifically, what exactly, or why it matters.

Step 3 — Add Music

Adjust the rhythm: try an absolute phrase, a comparison, or end on a strong word.

Step 4 — Polish

Replace any vague words with precise ones. Cut anything that doesn't earn its place.

Put It All Together — Sentence Starter Scaffold

"Looking back, I realize that ___ was the moment ___."

Irealizethat [clause]Looking back(Participial Phrase)Noun Clause (Object of "realize")[subject]wasthe moment [rel. clause]Participial phrase opener + main clause + embedded noun clause + relative clause = 4-layer structure

A complex sentence starter provides a sophisticated architectural scaffold (participial phrase + main clause + noun clause) for your ideas.

Sentence Starters — pick one or write your own:

Each starter gives you a sophisticated scaffold. Fill in the blanks with your own specific details.

There are things that ___ — and ___ is one of them.

___, ___, and somehow, ___.

She had spent years ___, and now that ___, she wasn't sure ___.

My best sentence:

Self-check — read your sentence out loud and check each box:

6

See the Difference

Ordinary vs. Beautiful — spot what makes the difference.

The best way to develop your eye for great writing is to compare ordinary sentences with beautiful ones — and then name exactly what makes the difference. That's what this section is for.

What to look for: vivid verbs, specific details, comparisons (similes), layered structure, surprising word choices, and sentences that end on their strongest word.

Comparison 1

See the Difference — Ordinary vs. Beautiful

ORDINARY — Compound Sentence

"Things changed a lot and it was hard."

BEAUTIFUL — Main Clause + Adverbial + Subordinate Clause

"Change arrived the way weather does — slowly at first, then all at once, until the world I knew had quietly become a place I didn't recognize."

The beautiful sentence uses an adverbial clause ('the way weather does') and a subordinate clause ('until the world…') to create depth and resonance.

What makes the second one better?

Comparison 2

See the Difference — Ordinary vs. Beautiful

ORDINARY — Two simple sentences

"The house was old and needed work. It had been empty for a long time."

BEAUTIFUL — Single sentence with embedded relative clause

"The house had the particular stillness of places that have been empty long enough to forget they were ever full."

The beautiful sentence uses an extended simile to make an abstract feeling concrete and memorable.

How does the beautiful sentence do more with fewer words?

Reflection Questions

Write a sentence about a place you know well, using at least one sensory detail.

Find a sentence you've written today. What is one word you could make more precise?

One rule for every sentence you write:

Make it correct. Make it clear. Make it sing.

One rule for every sentence you write:

Make it correct. Make it clear. Make it sing.