～のだろうか (I wonder...)

I wonder...

JLPT N4
Pattern

Plain form + のだろうか

How it works

のだろうか means “I wonder ~?”, a thoughtful question to oneself or to readers. It is common in writing; in speech, のかな is more natural.

Examples

  • かれは なぜ 来なかったのだろうか。I wonder why he didn't come.
  • この 計画は 本当に うまく いくのだろうか。Will this plan really work, I wonder?

Related grammar

Further reading

Bunpro N4 · Lesson 7

Put your practice together

Work through a complete paper at your own pace or choose a timed mock exam. No account is needed to begin.
Choose a practice session