YOU SAID:
They improved dramatically once the lead singer left.
INTO JAPANESE
リードシンガーが去ると、彼らは劇的に改善しました。
BACK INTO ENGLISH
When the lead singers left, they improved dramatically.
INTO JAPANESE
リードシンガーが去ったとき、彼らは劇的に改善しました。
BACK INTO ENGLISH
When the lead singers left, they improved dramatically.
You should move to Japan!