谈恋爱用英语可以说成 "to date" 或 "to be in a relationship"。这个说法源自于英语中表示恋爱关系的常用词汇。

例句：

I've been dating John for a few months now. (我和约翰已经交往几个月了。)

Are you in a relationship? (你们在交往吗？)

We're just friends, we're not dating. (我们只是朋友，不是在谈恋爱。)