Uses of a Comma (,) in English
A comma is a punctuation mark used to separate ideas, improve flow, and prevent confusion in sentences.
1. Comma in Lists (Series)
Meaning: Used to separate three or more items in a list.
- She bought rice, beans, sugar, and milk.
- The hall was filled with teachers, students, parents, and guests.
- He enjoys reading, writing, singing, and teaching.
Practice
- I saw lions elephants giraffes and zebras.
- We need books rulers pens and chalk.
Answers
- I saw lions, elephants, giraffes, and zebras.
- We need books, rulers, pens, and chalk.
2. Comma Before Coordinating Conjunctions
Meaning: Used to join two complete sentences connected by and, but, or, so, yet, for, nor.
- I wanted to go, but it started raining.
- She studied hard, so she passed.
- He called me, and I answered.
Practice
- She was tired but she continued working.
- I prepared well so I felt confident.
Answers
- She was tired, but she continued working.
- I prepared well, so I felt confident.
3. Comma After Introductory Words or Phrases
Meaning: Used after words or phrases that begin a sentence.
- In the evening, we prayed.
- After the match, they celebrated.
- However, he refused.
Practice
- After school we went home.
- Suddenly the door opened.
Answers
- After school, we went home.
- Suddenly, the door opened.
4. Commas for Non-essential Information
Meaning: Used to enclose extra information that can be removed without changing the main meaning.
Practice
- My sister who lives in Nakuru is visiting.
- The boy who won the prize is my cousin.
Answers
- My sister, who lives in Nakuru, is visiting.
- The boy, who won the prize, is my cousin.
5. Commas Between Coordinate Adjectives
Meaning: Used between adjectives that equally describe a noun.
- She wore a short, red dress.
- It was a cold, rainy morning.
Practice
- He bought a big blue bag.
- She lives in a quiet peaceful village.
Answers
- He bought a big, blue bag.
- She lives in a quiet, peaceful village.
6. Commas in Direct Speech
Meaning: Used to separate reporting words from quotations.
- The teacher said, “Read your books.”
- “I am ready,” she replied.
Practice
- He said I am tired.
- Come here she shouted.
Answers
- He said, “I am tired.”
- “Come here,” she shouted.
7. Commas in Direct Address
Meaning: Used when speaking directly to someone.
Practice
- Teacher may I ask a question?
- Come here Peter.
Answers
- Teacher, may I ask a question?
- Come here, Peter.
8. Commas to Avoid Confusion
- Let’s eat, grandma.
- While walking, the phone rang.
Practice
- Let’s eat children.
- While walking the phone rang.
Answers
- Let’s eat, children.
- While walking, the phone rang.
9. Commas in Dates, Addresses & Numbers
10. After Yes / No / Well
- Yes, I understand.
- No, I don’t agree.
- Well, let us begin.
If removing a comma changes meaning or causes confusion, the comma is necessary.
Happy learning!
