Every English learner hits this wall. You're trying to describe a movie, and suddenly you freeze: Is it "I am bored" or "I am boring"?
Huge difference.
One means you're having a terrible time. The other means you're the kind of person people avoid at parties. So let's clear this up once and for all.
The Simple Rule: Response vs. Cause
Here's the shortcut I give my students:
- -ed adjectives describe how someone feels (their emotional response)
- -ing adjectives describe the thing (or person) causing that feeling
"I was bored because the lecture was boring."
The lecture caused the feeling. You were the one feeling it. Easy, right?
The Active vs. Passive Connection
This makes more sense if you think about active and passive voice:
-ing adjectives have an active meaning. They describe something that does something to you.
- A frightening movie = a movie that frightens you
-ed adjectives have a passive meaning. They describe how you receive that action.
- A frightened person = a person who feels frightened by something
Let me show you a comparison that makes it click.
| -ed Adjective | -ing Adjective |
|---|---|
| A person's feeling | The thing that causes it |
| "I feel **tired**." | "This job is **tiring**." |
| "She was **excited**." | "The news was **exciting**." |
| "He got **confused**." | "The instructions were **confusing**." |
| "I was **annoyed**." | "The noise was **annoying**." |
| "The kids are **bored**." | "The game is **boring**." |
The Most Common Confusing Pairs
Some of these trip people up way more than others. Here are the big ones:
| -ed Feeling | -ing Cause |
|---|---|
| Interested (you want to learn more) | Interesting (something grabs your attention) |
| Disappointed (you feel let down) | Disappointing (it let you down) |
| Embarrassed (you feel shame) | Embarrassing (the moment caused shame) |
| Frustrated (you feel stuck) | Frustrating (the situation made you stuck) |
One More Tip That Helps
Ask yourself this question: Is the focus on the person or the thing?
- If it's about a person's emotion → use -ed: I'm satisfied with my score.
- If it's about the quality of something → use -ing: The results were satisfying.
Think of the -ing form as the cause and the -ed form as the result.
Ready to Test Yourself?
The best way to lock this in is practice. At English Measure, you can take a free grammar test that covers exactly these kinds of tricky spots. No signup tricks, no nonsense — just real feedback on your level.
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