YOU SAID:

the light on top did not flash when

INTO JAPANESE

上に光が点滅しなかったとき

BACK INTO ENGLISH

When the on light flashed

INTO JAPANESE

上の光が点滅したとき

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When the flashing light on

INTO JAPANESE

時の光の点滅

BACK INTO ENGLISH

When the light flashes

INTO JAPANESE

いつ光が点滅

BACK INTO ENGLISH

When the light flashes