Ever send a text that said “Is coming to the party tonight” and watch your friend reply “…WHO is coming?” Congrats, you just forgot the subject. Don’t worry—it happens to the best of us. But if you’re writing anything more formal than a text (essays, emails to your professor, that cover letter you’ve been putting off), you need to know what a subject is and why every sentence needs one.
What Is a Subject, Anyway?
The subject is the part of the sentence that answers the question: Who or what are we talking about? or Who or what is doing something? It’s basically the star of the sentence—the main character, if you will.
In most sentences, the subject comes before the verb (the action word). The subject is often a noun—a person, place, or thing.
Example: My laptop crashed during my final exam.
Ask yourself: What crashed? My laptop. That’s your subject.
Why Every Sentence Needs One
A sentence without a subject is like a movie without a main character—confusing and incomplete. Without a subject, your reader doesn’t know who or what you’re talking about.
Incomplete: Studied all night for the test.
Who studied? We have no idea! Now let’s add a subject:
Complete: Maria studied all night for the test.
Ah, now we know who the overachiever is. (Good job, Maria.)
Types of Noun Subjects: The Cast of Characters
Nouns come in different flavors, and they can all play the role of subject in your sentence:
Common Nouns – These are general, everyday words that aren’t capitalized (unless they start a sentence). Think: student, coffee, procrastination.
The student forgot to mute their mic on Zoom.
Proper Nouns – These name specific people, places, or things and are always capitalized. Think: Taylor Swift, Chicago, PlayStation.
Taylor Swift dropped another album.
Concrete Nouns – These are things you can experience with your five senses—see, touch, hear, smell, or taste. Think: pizza, textbook, alarm clock.
The alarm clock is the enemy of college students everywhere.
Abstract Nouns – These represent ideas, emotions, or qualities you can’t physically touch. Think: freedom, anxiety, happiness.
Anxiety peaks right before finals week.
Collective Nouns – These refer to groups of people or things as a single unit. Think: team, family, herd.
The team celebrated after winning the championship.
Quick Practice: Spot the Subject
Try finding the subject in these sentences (answers at the end):
- My roommate never does the dishes.
- Confidence is key to acing presentations.
- The library closes at midnight on weekdays.
Answers: 1. roommate (common, concrete noun) | 2. Confidence (abstract noun) | 3. library (common, concrete noun)
The Bottom Line
Every sentence needs a subject. It’s the foundation that holds everything together. Whether it’s a common noun like student, a proper noun like Netflix, or an abstract concept like freedom—make sure your sentence has one. Your professors (and your inbox recipients) will thank you.
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