YOU SAID:
I doubt this phrase will become popular
INTO JAPANESE
彼女の歌が流行するかどうかは疑わしい。
BACK INTO ENGLISH
It is doubtful whether her song will become popular.
INTO JAPANESE
彼女の歌が流行するかどうかは疑わしい。
BACK INTO ENGLISH
It is doubtful whether her song will become popular.
That didn't even make that much sense in English.