YOU SAID:
she in the gym tonight
INTO JAPANESE
彼女は今夜ジムにいる
BACK INTO ENGLISH
She's in the gym tonight
INTO JAPANESE
彼女は今夜ジムにいます
BACK INTO ENGLISH
She is in the gym tonight
INTO JAPANESE
彼女は今夜ジムにいます
BACK INTO ENGLISH
She is in the gym tonight
You've done this before, haven't you.