短语“和某人聊天”可以用"chat with someone"来表达。这个短语来自英语动词"chat"和介词"with"的结合。例如：

I'm going to chat with John about the project.
(我打算和约翰聊一聊项目。)
She pkes to chat with her friends on the phone.
(她喜欢和朋友通过电话聊天。)
He spends hours chatting with strangers on the internet.
(他花费数小时在网上和陌生人聊天。)

另外，短语"have a conversation with someone"也可以表达“和某人聊天”的意思。例如：

I'm looking forward to having a conversation with you.
(我期待着和你聊天。)
She had a long conversation with her parents about her future.
(她和父母聊了很长时间关于她的未来。)
We need to have a serious conversation about our relationship.
(我们需要认真地谈谈我们的关系。)

希望这些例句能帮助你理解这个短语的用法。