YOU SAID:

I like it when it rains but lightnings scare me

INTO JAPANESE

雨が降ったときは好きだが電光が怖い

BACK INTO ENGLISH

I like it when it rains but I'm afraid of lightning

INTO JAPANESE

雨が降ったときは好きだが雷が怖い

BACK INTO ENGLISH

I like it when it rains, but I'm afraid of thunder

INTO JAPANESE

雨が降ったら好きですが、雷が怖いです

BACK INTO ENGLISH

I like it when it rains, but I'm afraid of thunder