たことがある

たことがある is used to talk about past experiences — something you have done at least once before.

🔹 Basic Meaning

• “have done … (before)”
• “have experienced …”

🔹 When to use たことがある

• To talk about past experiences
• When the exact time is not important
• To say you have done something before
• Very common in daily conversation (N5)

🔹 Simple Examples

日本に行ったことがあります。
→ I have been to Japan.

寿司を食べたことがあります。
→ I have eaten sushi.

富士山に登ったことがあります。
→ I have climbed Mt. Fuji.

一度見たことがあります。
→ I have seen it once.

🔹 Important Notes (N5)

たことがある is not used with actions you do regularly (use the present tense instead).

⭐ The Grammar Summary

• Verb (た-form) + ことがある = “have done … before”
• Used for past experience
• Time is not specified
• Very important grammar for JLPT N5