这么久了

for so long

→ 这么
phrase Rare #19,262
for so long Describes a long time that has passed or continued; 了 emphasizes that the duration has reached this point.
CH: 我等了你这么久了。
EN: I've been waiting for you for so long.

这么久了你不想回去吗

After all this time, don't you want to go back?

— 唐人街探案 (2015)

你和我都在这个地球上活了这么久了

You and I have both been living on this earth for so long.

— 瞬息全宇宙 (2022)

都这么久了你还不知道吗

After all this time, you still don't know?

— 坠落的审判 (2023)

这么久了啊

Has it really been that long?

— 你的名字。 (2016)

这么久了还不出来

It's been so long—why haven't you come out yet?

— 一一 (2000)

我认识你这么久了你以前就是个坏小子,现在也一样吧?

I've known you for so long—you used to be a bad boy, and you still are, right?

— 穆那大哥做医生 (2003)

已经过了这么久了,也许他死了

It’s been so long; maybe he’s dead.

— 海上钢琴师 (1998)