陪伴在老人身边用英语可以说作 keep company with the elderly。其中，keep company 意思是陪伴，with 是连接词，the elderly 指的是老人。
这个短语的来源可能源自于日常英语中对于陪伴的表达。
一些英文例句及其中文翻译如下：
She pkes to keep company with the elderly at the nursing home.
她喜欢在养老院陪伴老人。
He spends his weekends keeping company with the elderly at the senior center.
他周末在老年中心陪伴老人。
Volunteering to keep company with the elderly is a rewarding experience.
志愿陪伴老人是一次有意义的经历。