YOU SAID:
She was never supposed to smile.
INTO JAPANESE
彼女は決して微笑むはずがなかった。
BACK INTO ENGLISH
She could never have smiled.
INTO JAPANESE
彼女は決して微笑むことができなかったでしょう。
BACK INTO ENGLISH
She would never have been able to smile.
INTO JAPANESE
彼女は決して微笑むことができなかっただろう。
BACK INTO ENGLISH
She would never have been able to smile.
You should move to Japan!