请问“to be questioned”在该句中的成分是什么

onetwothree

原句：The witness went on the witness stand  to be questioned by the prosecution
7 i; A% j1 C  m) [
我自己的句型分解是 the witness是主语，went on是动词，the witness stand是宾语，by the prosecution是修饰语，我就不太清楚 to be questioned 充当什么成分

% y1 A+ s% w3 _# [6 y请教一下各位朋友们。感谢每一位热心帮助的朋友

sabrina2111

后置定语  比如 a book to be read 将要读的一本书

yuqinghuaz1

主语补语

onetwothree

sabrina2111 发表于 2020-5-17 10:20
2 Q  H7 F  ]% q3 Y& W. ^4 W后置定语  比如 a book to be read 将要读的一本书

谢谢

deepbluedic

The witness went on the witness stand to be questioned by the prosecution.
+ w$ `  M+ q% j0 \, _* p
! m$ [: w" D# v6 Y"To be questioned" 是否可以理解为 动词不定式 做非谓语 表示目的。
( h) [+ f" {+ J* ~. X# [) |表明目击证人走上证人席等待被询问。
3 w4 ]# K+ h# C/ b7 @, f
) K' ~) |9 U4 a9 p8 B& d语句也可调整为：
To be questioned by the prosecution the witness went on the witness stand.

mxh3698

The witness went on the witness stand  to be questioned by the prosecution
证人               走上            证人席          接受  控方           的盘问。

He  went to the cinema to watch a movie he had been looking forward for quite some time.
5 z3 c9 S9 Y  h6 {# L, Z# [He went to the barber's to have his hair cut.

4 w/ J0 F! u/ {" P4 a目的状语
* H& h7 A/ s- X- H4 t