北师大新版课本（必学一）有如此一个句子：
Somespent the dinner bent over their phones, texting friends online but ignoringthe ones who sat right in front of them.
想问下这里为何是bent而不是bending? spend后常接doing的。
Some spent the dinner bent over their phones, texting friends online but ignoring the ones who sat right in front of them.
句中的过去分词短语 bent…和目前分词短语 texting…与 ignoring…用作方法状语。
你的问题刘老师过去有过非常详细的解答，请参考：
https://www.cpsenglish.com/question/4713
