Punctuation & Capitalization
Learn the rules of English punctuation and capitalization with examples: period, comma, semicolon, colon, quotation marks, apostrophe, and capital letters.
Punctuation & Capitalization
Punctuation marks are symbols that organize writing and make meaning clear. Capitalization is the use of capital letters to signal the start of sentences and proper nouns.
Common Punctuation Marks
| Mark | Name | Main Use |
|---|---|---|
| . | Period / Full stop | Ends a statement |
| , | Comma | Separates items or clauses |
| ; | Semicolon | Joins related independent clauses |
| : | Colon | Introduces lists or explanations |
| ? | Question mark | Ends a question |
| ! | Exclamation mark | Shows strong emotion |
| " " | Quotation marks | Enclose direct speech |
| ' | Apostrophe | Shows possession or contraction |
| - | Hyphen | Joins words |
| — | Dash | Marks a break in thought |
| ( ) | Parentheses | Add extra information |
Period (.)
- Ends a declarative or imperative sentence.
- Used after most abbreviations.
Examples
- She lives in Dhaka.
- Please close the door.
- Dr. Rahman is here.
Comma (,)
Use a comma:
- Between items in a list: We bought apples, bananas, and mangoes.
- After introductory words: However, he refused.
- Before a conjunction joining two clauses: I called him, but he didn't answer.
- Around non-essential information: My brother, who lives in Sylhet, is a doctor.
Semicolon (;)
- Joins two related independent clauses without a conjunction.
- Separates items in a complex list.
Examples
- She loves poetry; he prefers novels.
- We visited Dhaka, Bangladesh; Delhi, India; and Kathmandu, Nepal.
Colon (:)
Use a colon to introduce a list, quotation, or explanation.
Examples
- Bring the following: pen, paper, and a ruler.
- He had one goal: to win.
Quotation Marks (" ")
Enclose direct speech and titles of short works.
Examples
- She said, "I am ready."
- I read "The Raven" last night.
Apostrophe (')
- Possession: Rahim's book
- Contraction: don't, it's, I'm
Capitalization Rules
Capitalize:
- The first word of every sentence.
- The pronoun I.
- Proper nouns: Dhaka, Bangladesh, Rahim.
- Days, months, holidays: Monday, July, Eid.
- Titles before names: Dr. Karim, President Biden.
- Major words in titles: The Old Man and the Sea.
Common Mistakes
❌ i live in dhaka.
✅ I live in Dhaka.
❌ She said "I am ready".
✅ She said, "I am ready."
❌ Its a beautiful day.
✅ It's a beautiful day.
Quick Quiz
1. Which sentence uses commas correctly?
A. We bought, apples bananas and mangoes.
B. We bought apples, bananas, and mangoes.
Answer: B
2. Which is correct?
A. i went to dhaka on monday.
B. I went to Dhaka on Monday.
Answer: B
Summary
- Punctuation marks structure and clarify writing.
- Common marks include period, comma, semicolon, colon, quotation, and apostrophe.
- Capitalize the first word of sentences, the pronoun I, and all proper nouns.
- Correct punctuation and capitalization make writing professional and easy to read.