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What Are The Capitalization Rules In English Grammar?

Knowing which words to capitalize and when can be tricky to understand since there are so many conventions in English grammar revolving around them. This article will act as a quick guide to break down all the capitalization rules in English grammar. So, keep on reading if you want to know how you can ensure that every piece of writing that you ever present is always error free! 

What Are The Capitalization Rules In English Grammar? | English Medium

5 Important Capitalization Rules In English Grammar

Here’s a list of 5 important capitalization rules that you need to be mindful of!

Capitalize The First Word In A Sentence

This rule is the easiest of them all. Each time you start a new sentence in English (i.e., after a full stop) make sure you write the first alphabet of the first word in its capital form. This even applies to quotations in the middle of a sentence, as long as the quoted text is itself a complete sentence. Take a look at these examples: 

  1. Dogs are the sweetest animals on Earth. 
  2. Where are the children? 
  3. My brother said, “Titanic is the greatest movie of all time,” but I strongly disagreed. 

Capitalize Names, Titles And Other Proper Nouns

Names of books, movies, tv shows, buildings etc. among other proper nouns, should all be written with their first alphabets in capital. 


  1. Eiffel Tower
  2. Burj Khalifa
  3. Jane Austen
  4. J.K. Rowling
  5. English Medium
  6. How I Met Your Mother
  7. Inception
  8. Leonardo DiCaprio
  9. Kalpana Chawla
  10. Narendra Modi

Capitalize The First Person Pronoun

The first person pronoun “I” should always be capitalized, as should contractions incorporating “I” (e.g., “I’m,” “I’ve” and “I’ll”). Other pronouns (“we,” “you,” etc.) are usually only capitalized at the beginning of a sentence.

Capitalize Months & Days Of The Week

Months and days of the week need to always be capitalized. 


  1. I’m meeting her this tuesday. (incorrect)
    I’m meeting her this Tuesday. (correct)
  2. She will be moving to New York in january. (incorrect)
    She will be moving to New York in January. (correct) 

Other Capitalizations

Other cases when it’s important to capitalize a word include:

  • Titles (e.g., Ms., Mr., Dr.)
  • Acronyms and initialisms (e.g., ISRO, CBI)
  • Reverential capitalization: i.e., the use of a capital letter as a mark of respect, such as when “God” is capitalized in writing about Christianity.
  • Job titles when they precede a name (e.g., “President Ram Nath Kovind”)

Most people who are unaware of these rules, tend to follow a general uniform pattern of capitalizing similar words in their work. Consistency is always key to producing good work. While this may work for you, it is always better to keep these rules in mind to make sure you produce 100% error free work. 

Capitalization is one such concept in English grammar that can only be mastered with experience. We hope this article helps you! 

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