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📝 Top 10 Grammar Mistakes and How to Fix Them

📅 March 7, 2026 • By DevTools Hub • 6 min read

Good grammar makes you look professional and credible. In fact, 74% of hiring managers say grammar mistakes in applications are immediate red flags. Here are the most common grammar errors and how to avoid them.

1. Their vs There vs They're

Wrong: Their going to the store. There car is blue.
Right: They're going to the store. Their car is blue.

2. Your vs You're

Wrong: Your going to love your new job.
Right: You're going to love your new job.

3. Its vs It's

Wrong: The dog wagged it's tail. Its a beautiful day.
Right: The dog wagged its tail. It's a beautiful day.

4. Then vs Than

Wrong: She is taller then me. First we'll eat than go.
Right: She is taller than me. First we'll eat then go.

5. Affect vs Effect

Wrong: The weather will effect our plans.
Right: The weather will affect our plans.
✅ Check Your Grammar Now