Learn Hardcore Chinese: Wǒmen yuè zǎo qù yínháng yuè hǎo. - The earlier we go to the bank, the better.

It’s the correlative comparative pattern 越...越..., which means “the more/earlier A, the more/better B.” Here, 越早去 = “the earlier [we] go,” and 越好 = “the better.” Typical structure:

Subject + 越 + (adjective/verb phrase) + 越 + (adjective/verb phrase) Example: 你越努力，就越幸运。 “The harder you work, the luckier you get.”

Why is 早 placed before 去? Could I say something like “越去早”?

早 functions adverbially and normally goes before the verb it modifies: 越早去 (“go earlier”). “越去早” is not idiomatic. Acceptable variants include:

越早去银行越好 (your sentence)
去得越早越好 (using the “得” complement)
早点去银行更好 (using 点/一点 and 更)

Can I omit 我们?

Yes. If the subject is obvious or you’re making a general statement, 越早去银行越好 is very natural. Chinese often drops the subject when context makes it clear.

Can I use 到 instead of 去?

Yes, with a nuance difference:

去银行 emphasizes the act of going.
到银行 emphasizes arrival. If the reason is about business hours, 越早到银行越好 “the earlier we arrive, the better” can feel more precise.

Do I need 就 in the second half (越..., 就越...)?

It’s optional. 我们越早去银行，就越好 is also correct. 就 adds a slight sense of natural consequence or emphasis, and is common in speech and writing.

Is a comma required between the two parts?

Not required, but common: 我们越早去银行，越好。 In speech, there’s usually a brief pause between the two “越” parts.

How is 越...越... different from 越来越?

越...越... correlates two variables: the more X, the more Y. Example: 你越晚去，排队的人就越多。
越来越 describes one thing changing over time: 银行里人越来越多 (“There are more and more people in the bank”).

Can I use 更 instead of 越 here?

Not for this correlative meaning. 更 = “even more” and makes a single comparison, not a “the more A, the more B” relation. You could say:

早点去银行会更好。 (“Going a bit earlier would be better.”) But not “更…更…” in place of “越…越…”.

Is 我们去银行，越早越好 correct?

Yes. That’s a topic–comment structure: “As for our going to the bank, the earlier the better.” It’s natural. Without the comma (我们去银行越早越好) it can feel awkward; add the comma or use the original 越早去银行越好.

How do I say “as early as possible”?

尽早: 我们尽早去银行。
越早越好: 我们去银行越早越好。
最好早点去: 我们最好早点去银行。 Note: 尽快 means “as soon as possible (in terms of speed/urgency),” not necessarily “early in the day.”

How do I form a yes–no question with this sentence?

Confirming: 我们越早去银行越好吧？ (seeking agreement)
Neutral yes–no: 是不是我们越早去银行越好？ Using 吗 at the end is possible but less idiomatic: 我们越早去银行越好吗？

How do I express the opposite or a negative correlation?

Opposite degree: 我们越晚去银行越好。 (“The later we go, the better.”)
Negative correlation: 越早去银行越不好/越糟糕。 This is grammatical but only natural if there’s a reason the early time is actually worse.
With “not”: 他越解释，我们越不明白。

What’s the difference among 早, 早点/早一点, 更早, and 尽早?

早: “early” (neutral degree). In 越早去 it’s comparative as part of 越…越….
早点/早一点: “a bit earlier,” softer/more colloquial: 我们早点去.
更早: “even earlier” than some reference: 更早去更好 works if a baseline is implied.
尽早: “as early as possible” (strong suggestion/urgency): 尽早办理.

Where do time words like 明天/上午 go?

They typically go after the subject and before the verb phrase:

我们明天越早去银行越好。
明天我们越早去银行越好。 You can also add both: 我们明天上午越早去银行越好。

Must I repeat 越 twice? Can I say “我们越早去银行好”?

You must repeat it. The pattern is correlative: 越 X，(就) 越 Y. Dropping the second 越 (…好) is ungrammatical.

How do I pronounce 银行 and avoid confusing 行?

银行 is yín háng (2-2). The 行 here is háng (“industry/line; bank”), not xíng (“to be OK; to do”). Full sentence pinyin: Wǒmen yuè zǎo qù yínháng yuè hǎo.