本当 concerns what is true; 実は introduces a fact the listener may not know.
The idea
Use 本当です to say something is true and 本当に before a predicate to mean “really”. 実は often opens a sentence that reveals a fact or corrects an impression: 実は、明日は行けません.
| Form | Example |
|---|---|
| 本当 | 本当です |
| 本当に | 本当に楽しい |
| 実は | 実は、行けません |
Examples
- その話は本当です。That story is true.
- それは本当ですか。Is that really true?
- その映画は本当に楽しかったです。I really enjoyed the film.
- 実は、京都に住んでいます。Actually, I live in Kyoto.
- 実は、明日は行けません。Actually, I cannot go tomorrow.
- そのニュースは本当でした。The news was true.
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Watch out
Both can be translated “actually”, but they have different roles. 実は is not a noun used before です; 本当に emphasizes a statement without necessarily revealing a secret.
Try it yourself
その話は__です。(本当/実は)
Show answer or example answer
本当
本当 completes 本当です, asserting that the story is true.
__、明日は行けません。(本当/実は)
Show answer or example answer
実は
実は introduces the previously undisclosed inability to go.
この映画は__に面白いです。(本当/実は)
Show answer or example answer
本当
本当 combines with に to emphasize 面白い: the film is really interesting.
Practice round
Answer questions, then rebuild Japanese sentences where available. We keep your score.
その話は__です。(本当/実は)
__、明日は行けません。(本当/実は)
この映画は__に面白いです。(本当/実は)
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
Keep your progress
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Say whether a story is true, then disclose something your listener may not know.

