多久没...了

有 多久没 约会 了

(咱们) ── Previous context

“how long has it been since we went on a date?”

我们俩 多久没 见 了

(我们俩多久没见了) ── Previous context

“How long has it been since we last saw each other?”

你知道我有 多久没 回来过 了 吗

(能一直这么开心就好了) ── Previous context

“Do you know how long it's been since I came back?”

妈 我都 多久没 谈恋爱 了

(那个小周 怎样) ── Previous context

“♪ I can't quite describe it ♪ Mom, it's been ages since I've even been in a relationship.”