歌うたい始はじめる

ichidan verb

start singing; begin to sing

Used when someone begins singing, often in a casual or natural context.

• 彼かの女じょは突とつ然ぜん歌うたい始はじめた。

  She suddenly started singing.

• カラオケで友とも達だちが歌うたい始はじめると、みんなも一いっ緒しょに歌うたい出だした。

  When my friend started singing at karaoke, everyone joined in.