"A bank nem ebben az épületben van, hanem abban."

Translation: The bank is not in this building, but in that one.

[howardbellian]

In this sentence why does "ebben" translate to "in this" but "abban" translate to "in that one".

[jsiehler]

The ez in the first clause is attached to the épület:

ez az épület - "this building"
ebben az épületben - "in this building"

Versus the az in the second half, which is not attached to a noun:

az - "that" or "that one" or "that thing"
abban - "in that" or "in that one"

[howardbellian]

Thanks very much for your help, maybe your explanation could be included in 'Tips and Notes' as I'm sure I won't be the last person to ask this question.

[Krisbaudi]

The Hungarian sentence is logic for me, but the English one not.
I understand from it: The BANK is not in this building, but THAT ONE (is in the building) and I would have translated that into Hungarian, if the English sentence had been first.

[ion1122]

The English is OK. Your understanding of the English is not correct. In the English sentence here, that one = in that one.

[Krisbaudi]

Thank you! I would have understood it immediately with the word IN, in the English sentence.

[Judit294350]

Not repeating the "in" is prety normal

[RichardSas9]

Why is the "ben" repeated twice in "ebben az épületben" as opposed to "ez az épületben"?

[Judit294350]

It is part of the Hungarian grammar. You attach the postposition or suffix to both the noun and the demonstrative pronoun.

[KneeGers]

It's pretty normal for a language with grammatical case to have all declinable words in a sentence "agree", it helps avoid confusion.

[BetsyLowe]

Tips and notes? Where do i find those?

[howardbellian]

They are on the page that shows all the lessons for any given exercise. They are underneath the lessons, just scroll down.