YOU SAID:

As long as they're both here, they have to wear these.

INTO JAPANESE

彼らがここにいる限り、これらを着なければなりません。

BACK INTO ENGLISH

You must wear these as long as they are here.

INTO JAPANESE

これらがここにある限り、これらを着用する必要があります。

BACK INTO ENGLISH

As long as they are here, they must be worn.

INTO JAPANESE

彼らがここにいる限り、着用しなければなりません。

BACK INTO ENGLISH

As long as they are here, they must be worn.