Learn Japanese: hurui mattibako wo mitukemasita.

古ふるい　マッチ箱ばこ　を　見みつけました。hurui mattibako wo mitukemasita.

The h-sound in 箱はこ changes into a b-sound because of rendaku, an irregular phenomenon where the initial letter of the second part of a compound word can become voiced.

Note

The h-sound in 箱はこ changes into a b-sound because of rendaku, an irregular phenomenon where the initial letter of the second part of a compound word can become voiced.

Breakdown of hurui mattibako wo mitukemasita.

をwo

direct object particle