Grammar: B1 - ✨ Grammar Essentials: ✏️ Writing Mechanics - Intermediate - Lesson 4: Semicolons (basic use: joining closely related independent clauses

✨ Lesson 4: The Semicolon (;) - Joining Closely Related Ideas

Today, we will learn about a more advanced punctuation mark: the semicolon1 ( ; ). A semicolon is like a "super-comma". It is stronger than a comma, but weaker than a full stop.

Its main job is to connect two independent clauses2 that are closely related3 in meaning.

The Main Rule: Connecting Two Complete Sentences

You can use a semicolon to join two complete sentences without a FANBOYS conjunction (and, but, so, etc.). You do this when the two sentences are so closely related that they feel like they belong together as one thought.

[Complete Sentence 1] ; [Complete Sentence 2].

Examples:

  • The tour of Angkor Wat was amazing; I learned so much about its history.
  • I have a lot of work to do tonight; I can't go out for dinner.
  • The market was very crowded; it was difficult to walk around.

Semicolon vs. Comma vs. Full Stop

Using a semicolon is a stylistic choice. Look at the different ways to connect the same two ideas:

Punctuation ChoiceExample
Full Stop (two separate sentences) The tour guide was excellent. He knew so much.
Comma + Conjunction (a compound sentence) The tour guide was excellent, and he knew so much.
Semicolon (shows a very close link) The tour guide was excellent; he knew so much.
Comma Splice4 (INCORRECT!) The tour guide was excellent, he knew so much.

The most important thing to remember is that you cannot use a comma alone to join two complete sentences. This is a "comma splice" error. You must use a full stop, a comma + conjunction, or a semicolon.

🧠 Practice Quiz: Correct or Incorrect?

Is the semicolon used correctly in these sentences?

  1. The weather was perfect; we took many beautiful photos.
    Correct. (The two ideas are closely related).
  2. I was very tired; so I went to bed early.
    Incorrect. (Do not use a conjunction like 'so' after a semicolon).
  3. He is a tour guide; his brother is a chef.
    Correct. (The two ideas are a close comparison).
  4. The temple was ancient; I bought a coconut.
    Incorrect. (The two ideas are not closely related).
📝 Homework: Join the Sentences

Join these pairs of sentences into a single sentence using a semicolon.

Example: The food was delicious. It was also very fresh. → The food was delicious; it was also very fresh.


1. The sunrise was beautiful. The sky was full of color.

→ ________________________________________________.

2. I have to wake up at 5 AM tomorrow. I should go to sleep now.

→ ________________________________________________.

(Answers: 1. The sunrise was beautiful; the sky was full of color. 2. I have to wake up at 5 AM tomorrow; I should go to sleep now.)

Vocabulary Glossary

  1. Semicolon: (Noun) - សញ្ញាក្បៀសចុច (sanhnha kbiĕh'chŏch) - The punctuation mark ( ; ) used to connect closely related independent clauses.
  2. Independent Clause: (Noun) - ឃ្លាឯករាជ្យ (khlēa aek'kâ'rĭəch) - A group of words that can be a complete sentence by itself.
  3. Closely Related: (Phrase) - ទាក់ទងគ្នាយ៉ាងជិតស្និទ្ធ (teăk'tông khnēa yeang chĭt'snĭt) - Having a strong connection in meaning.
  4. Comma Splice: (Noun) - កំហុសប្រើក្បៀស (kâmhŏh prae kbiĕh) - An error where two independent clauses are joined only by a comma.

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