妹は、「こんにちは」と言いませんでした。

My sister did not say "Hello".

妹(いもうと)は、「こんにちは」と言(い)いませんでした。

Imōto wa," konnichiha" to iimasen deshita.

妹 (いもうと)

younger sister

は (は)

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

今日は (こんにちは、こんちは)

hello; good day (daytime greeting)

と (と)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

言う (いう、ゆう)

to say; to utter; to declare; to name; to call; to go (e.g. "the alarm went ping"); to make a noise

デス (デス)

death

Readings: マイ、いもうと

Meaning: younger sister

Readings: ゲン、ゴン、い.う、こと

Meanings: say, word