How to say "perhaps" in Japanese

• 多分たぶんJLPT N5approx.Common
  adverbThe most general of these words: it covers 'perhaps' but its core sense is 'probably', so it fits when you think something is likely — a guess about plans, weather, or someone's feelings.
  君きみにはたぶんみんなわかっていることでしょう。↗

  I expect you know all about it.
• ひょっとするとCommon
  adverbCovers 'perhaps/maybe/possibly' with a nuance of chance: it just might be that something, often unexpected, is true or happens; a word of mimetic origin.
  ひょっとすると明日あすは雨あめかもしれない。↗

  Perhaps it will rain tomorrow.
• もしかしたらJLPT N2approx.Common
  expression, adverbRaises a possibility — 'perhaps, by some chance' — when you wonder whether something might be the case; a natural lead-in to a speculation or suspicion.
  この空模様そらもようだと、もしかしたら午後ごごにはひと雨あめ降ふるかもしれません。↗

  From the look of the sky, it may rain in the afternoon.
• もしかしてJLPT N1approx.Common
  adverbClose in meaning to もしかしたら; its 'by any chance' sense makes it a typical opener for questions — 'could it be that…?' — when you suspect something and want to check.
  ああ、もしかして名前なまえを呼よばれるのが恥はずかしいって？↗

  Ah, could it be you're embarrassed to be called by your first name?
• もしかするとJLPT N2approx.Common
  adverbLargely interchangeable with the other もしか~ forms: it hedges a statement with 'perhaps, maybe, by some chance', leaving open whether something is true.
  もしかすると彼かれは明日あす来くるかもしれない。↗

  He might come tomorrow.

Use 多分 for the all-purpose 'perhaps' that leans toward 'probably'; 「ひょっとすると」 and the three もしか~ words raise a chance possibility, often that something unexpected might be true.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 多分たぶんprobably
• ひょっとするとperhaps
• もしかしたらperhaps
• もしかしてperhaps
• もしかするとperhaps
• かもmay
• かもしれないmay
• かもしれませんmay
• ひょっとしたらpossibly
• かもしれんmay
• だったりしてmight it be that
• ひょっとpossibly
• ことにするとperhaps
• もしかしperhaps
• もしやperhaps
• やもしれぬmay
• ことによるとpossibly
• かもしんないmay
• かもしれずmay
• やもしれずmay
• かもしれぬmay
• やもしれないmay
• あるいはmaybe
• ワンチャンmaybe
• けだしpossibly
• よう(I) wonder (if)
• 大概たいがいprobably
• 大方おおかたprobably