Complain About
Use complain about when you’re unhappy or annoyed about something. This is the most common way to express everyday complaints.
- I want to complain about the terrible service at this café!
- She always complains about the weather in London.
Complain Of
Use complain of only when talking about symptoms of illness or pain.
- He complained of a headache.
- She complained of feeling dizzy.
Complain For
Complain for is rare and only used in formal or legal contexts, usually meaning “to file a complaint for something.”
- He filed a complaint for damages.
- The company submitted a complaint for breach of contract.
Examples to Remember
| Phrase | Example | When to Use |
|---|---|---|
| complain about | I want to complain about my cat — he stole my sandwich again! | Everyday complaints |
| complain of | My goldfish complains of boredom every morning. | Symptoms, illnesses |
| complaint for | My dog filed a complaint for emotional distress. | Formal/legal complaints |
⚠️ Don’t say: I complain for the noise!
✅ Say: I complain about the noise!
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