These sentences were read aloud by real people — native Japanese speakers — for the open Mozilla Common Voice project. Listen to how a phrase sounds in real speech: the intonation, the pace, the way words run together. Two speakers mean two different people read it — compare them.
五分ほど洗面所に行って戻ってみると、ベッドの上に置いてあった、肩かけ鞄が無い。
ごふんほどせんめんしょにいってもどってみると、べっどのうえにおいてあった、かたかけかばんがない。I went to the washroom for about five minutes, and when I came back the shoulder bag I'd left on the bed was gone.