YOU SAID:
The cat jumped swiftly.
INTO JAPANESE
猫は素早く跳ねた。
BACK INTO ENGLISH
The cat jumped quickly.
INTO JAPANESE
猫はすぐに飛び上がった。
BACK INTO ENGLISH
The cat immediately jumped up.
INTO JAPANESE
猫はすぐに飛び上がった。
BACK INTO ENGLISH
The cat immediately jumped up.
That didn't even make that much sense in English.