YOU SAID:
a quick fox jumps over a lazy dog
INTO JAPANESE
素早いキツネが怠け者の犬を飛び越える
BACK INTO ENGLISH
A swift fox jumps over a lazy dog
INTO JAPANESE
すばやいキツネが怠け者の犬を飛び越える
BACK INTO ENGLISH
A swift fox jumps over a lazy dog
That didn't even make that much sense in English.