YOU SAID:
i must be driving down the highway
INTO JAPANESE
私は、高速道路運転でなければ
BACK INTO ENGLISH
I must be driving a high-performance road
INTO JAPANESE
高速道路を運転する必要があります。
BACK INTO ENGLISH
You need to drive the highway.
INTO JAPANESE
高速道路をドライブする必要があります。
BACK INTO ENGLISH
You must drive to the highway.
INTO JAPANESE
高速道路をドライブする必要があります。
BACK INTO ENGLISH
You must drive to the highway.
That didn't even make that much sense in English.