YOU SAID:
When I was on a walk, I saw a double rainbow.
INTO JAPANESE
散歩中、二重の虹が見えました。
BACK INTO ENGLISH
During the walk, I saw a double rainbow.
INTO JAPANESE
散歩中、二重の虹を見ました。
BACK INTO ENGLISH
During the walk, I saw a double rainbow.
That didn't even make that much sense in English.