but在句子中的用法 but在定语从句中充当宾语吗？

but在句子中的用法

but在定语从句中充当宾语吗？

but在定语从句中充当宾语吗？

不可以
but 作为关系代词引导定语从句时，一般用于否定句中，相当于 who…not或that…not及which…not。这样用法是双重否定来加强语气。
例句There is no man but wants to spend Spring Festival with family.
没有一个人不想和家人一起过春节。
上句相当于：There is no man who does not want to spend Spring Festival with family. 大家注意原句中用的是wants.

All but one相关的语法？

All but oneare going to take part in the conference which is to be held tomorrow.
A.
is going to； that is to take place
B.
are going to； that is about to take place
all but one 主语是all，且all在此指人，故谓语动词用复数；take place 属不及物动词短语，无被动语态；be about to后面不能跟具体的时间状语。
all but还可表示“除了……全部都”。
All but one will go there. 除一人外都将去那里。
② anything but意为“决非，并不，决不”，相当于not at all，far from。
It is anything but cheap. 这决不便宜。
It is anything but pleasant to be caught in the rain. 遭雨淋并不是愉快的事。
The man is anything but honest. 这人一点也不诚实。
The room is anything but sunny. 这房间阳光并不充足。
He is anything but an expert. 他绝不是什么专家。
All but my auntie have had lunch.
除了我的婶婶以外,大家都吃了中饭了。