これが、彼がそうした理由です。

Sentence Analyzer

これ そうした 理由 です

English Translation

This is the reason why he did it.

Furigana

これが、(かれ)がそうした理由(りゆう)です。

Romanji

Kore ga, kare ga sōshita riyū desu.

Words

此れ (これ)
this (indicating an item near the speaker, the action of the speaker, or the current topic); this person (usu. indicating someone in one's in-group); now; here; I (me); certainly
()
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
(かれ)
he; him; his; boyfriend
然うした (そうした)
such
理由 (りゆう、わけ)
reason; pretext; motive
です (です)
be; is

Kanji

Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: リ、 ことわり
Meanings: logic, arrangement, reason, justice, truth
Readings: ユ、 ユウ、 ユイ、 よし、 よ.る
Meanings: wherefore, a reason