たびに

The grammar structure たびに means "whenever," "every time," or "each time." It expresses that every time a certain event occurs, something else consistently happens as a result. The pattern emphasizes the repeated co-occurrence of two events – whenever A happens, B also happens.

Structure

• Verb (dictionary form) + たびに

  このうた歌をきく聞くたびに、がくせいじだい学生時代をおもいだす思い出す。

  Every time I hear this song, I remember my school days.

• Noun + の + たびに

  りょこう旅行のたびに、おみやげお土産をかって買ってくる。

  Every time I travel, I buy souvenirs.

Usage notes

たびに often carries the nuance that the repeated outcome is noteworthy or remarkable – something the speaker finds significant, surprising, or emotional. It frequently appears in sentences describing personal feelings, gradual change, or habitual patterns tied to specific triggers.

Comparison with ～とき

While 〜～とき simply means "when" and describes a single occasion or general timing, たびに specifically emphasizes that the outcome happens every single time without exception. It is stronger and more emphatic about the repetition.