YOU SAID:
I was wondering how your husband has been doing.
INTO JAPANESE
私はあなたの夫がどのようにしているのだろうと思っていました。
BACK INTO ENGLISH
I thought how your husband did it.
INTO JAPANESE
私はあなたの夫がそれをやったと思った。
BACK INTO ENGLISH
I thought your husband did it.
INTO JAPANESE
私はあなたの夫がそれをしたと思った。
BACK INTO ENGLISH
I thought your husband did it.
That didn't even make that much sense in English.