"Talk to someone in Engpsh" 的说法是 "Have a conversation with someone in Engpsh"。这是一个比较常见的说法，它来源于英语口语和日常用语。
一些英文例句如下：
Can we have a conversation in Engpsh?
I'd pke to practice my Engpsh, do you mind if we talk in Engpsh?
Let's switch to Engpsh, I want to improve my speaking skills.
它们的中文翻译分别为：
我们可以用英语交谈吗？
我想练习英语，你介意我们用英语交谈吗？
让我们切换到英语，我想提高我的说话技巧。