YOU SAID:

she'll be coming round the mountain when she comes

INTO JAPANESE

彼女が来るとき、彼女は山の周りに来るでしょう

BACK INTO ENGLISH

When she comes, she will come around the mountain

INTO JAPANESE

彼女が来るとき、彼女は山の周りに来るでしょう

BACK INTO ENGLISH

When she comes, she will come around the mountain