昔はこの建物は病院だった。

昔はこの建物は病院だった。

Formerly this building was a hospital.

昔(むかし)はこの建物(たてもの)は病院(びょういん)だった。

Mukashi wa kono tatemono wa byōin datta.

昔 (むかし)

olden days; former

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

建物 (たてもの)

building

病院 (びょういん)

hospital

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: セキ、シャク、むかし

Meanings: once upon a time, antiquity, old times

Readings: ケン、コン、た.てる、た.て、 -だ.て、た.つ

Meaning: build

Readings: ブツ、モツ、もの、もの-

Meanings: thing, object, matter

Readings: ビョウ、ヘイ、や.む、 -や.み、やまい

Meanings: ill, sick

Reading: イン

Meanings: Inst., institution, temple, mansion, school