The university conducted a survey to find out how satisfied the students were with their courses.
この文は受動態の間接疑問文?なのでしょうか?
それからhow were the students satisfied ではいけないのですか?
The university conducted a survey to find out how satisfied the students were with their courses.
The university conducted a survey to find out how satisfied the students were with their courses.
この文を詳しく分析すると、
The university 主語
conducted 他動詞(過去形)(原形 conduct)
a survey (conducteの目的語)
to find out how satisfied the students were with their courses. 不定詞副詞句(副詞的用法)
conductedにかかる
この中を分析すると、
find 他動詞
out 副詞
how satisfied the students were with their courses (findの目的語・目的節)
how were the students satisfied ではいけないのですか?
だめです。
どれくらい満足、どれくらい大きいなど程度を聞いているので、
how + 形容詞、副詞としなければなりません。
例 how big is it? how old are you? など
また、be動詞wereとthe studentsが入れ替わると疑問文の表現となるので間違いです。