Common nouns are GENERAL names for people, places, things, or ideas (dog, city, book, teacher). Proper nouns are SPECIFIC names and are ALWAYS CAPITALIZED (London, Sarah, Monday, English, Apple Inc.). Common nouns can have articles (a dog, the city), but proper nouns usually don't need articles (Sarah, not "the Sarah"). Knowing when to capitalize is essential: capitalize proper nouns (specific names) but NOT common nouns (general names).
| Subject | Positive | Negative | Question |
|---|---|---|---|
| Common (general) | I see a dog | I don't see a dog | Do you see a dog? |
| Proper (specific person) | I know Sarah | I don't know Sarah | Do you know Sarah? |
| Proper (specific place) | I live in London | I don't live in London | Do you live in London? |
| Proper (day/month) | Today is Monday | not common | Is today Monday? |
| Proper (language) | I speak English | I don't speak English | Do you speak English? |
| Proper (brand/company) | I use Apple products | I don't use Apple products | Do you use Apple products? |
Common nouns — general, not capitalized (unless starting sentence)
"I see a dog." / "The city is beautiful." / "I need a teacher." / "She reads books."
Proper nouns (people, places) — specific, always capitalized
"Sarah" (person), "London" (city), "France" (country), "Mount Everest" (mountain)"
Days, months, holidays — always capitalized
"Monday, Tuesday" (days), "January, February" (months), "Christmas, Easter" (holidays)"
Languages, nationalities — always capitalized
"English, Spanish, French" (languages), "American, British, Chinese" (nationalities)"
Brands, companies, titles — capitalized
"Apple Inc., Google, Microsoft" (companies), "Doctor Smith, President Biden" (titles + names)"
I live in london.
I live in London.
Proper nouns (specific place names) must be capitalized.
I speak english and spanish.
I speak English and Spanish.
Languages are always capitalized.
Today is monday.
Today is Monday.
Days of the week are always capitalized.
My friend Sarah is a Teacher.
My friend Sarah is a teacher.
'Teacher' is a common noun (general), not capitalized unless starting sentence.
Two students introducing themselves
Maria
Tom
Maria
Tom
Maria
Tom
Maria
Write C (common) or P (proper).
Grammar sticks when you use it out loud. Practise with an AI tutor who gives you instant feedback.
Speak with AI Tutor