この詩は昨夜彼によって書かれました。

この詩は昨夜彼によって書かれました。

This poem was written by him last night.

この詩(し)は昨夜(さくや)彼(かれ)によって書(か)かれました。

Kono shi wa sakuya kare niyotte kakaremashita.

此の (この)

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

詩 (し)

poem; verse of poetry

は (は)

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

夕べ (ゆうべ、ゆう、さくや)

evening; last night

彼 (かれ)

he; him; his; boyfriend

に因って (によって)

according to; by (means of); due to; because of

書く (かく)

to write; to compose; to pen; to draw; to paint

Readings: シ、うた

Meanings: poem, poetry

Reading: サク

Meanings: yesterday, previous

Readings: ヤ、よ、よる

Meanings: night, evening

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Readings: ショ、か.く、 -が.き、 -がき

Meaning: write