それを忘れるとは彼女の不注意でした。

Sentence Analyzer

それ 忘れる 彼女 不注意 でした

English Translation

It was careless of her to forget it.

Furigana

それを(わす)れるとは彼女(かのじょ)不注意(ふちゅうい)でした。

Romanji

Sore o wasureru to wa kanojo no fuchūi deshita.

Words

其れ (それ)
that (indicating an item or person near the listener, the action of the listener, or something on their mind); it; that time; then; there (indicating a place near the listener); you
()
indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
忘れる (わすれる)
to forget; to leave carelessly; to be forgetful of; to forget about; to forget (an article)
()
if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
彼女 (かのじょ)
she; her; her; girlfriend; sweetheart
()
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
不注意 (ふちゅうい)
carelessness; inattention; thoughtlessness
デス (デス)
death

Kanji

Readings: ボウ、 わす.れる
Meaning: forget
Readings: ヒ、 かれ、 かの、 か.の
Meanings: he, that, the
Readings: ジョ、 ニョ、 ニョウ、 おんな、 め
Meanings: woman, female
Readings: フ、 ブ
Meanings: negative, non-, bad, ugly, clumsy
Readings: チュウ、 そそ.ぐ、 さ.す、 つ.ぐ
Meanings: pour, irrigate, shed (tears), flow into, concentrate on, notes, comment, annotate
Reading: 
Meanings: idea, mind, heart, taste, thought, desire, care, liking