彼は昨夜よく眠った。

彼は昨夜よく眠った。

He slept well last night.

彼(かれ)は昨夜(さくや)よく眠(ねむ)った。

Kare wa sakuya yoku nemutta.

彼 (かれ)

he; him; his; boyfriend

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

良く (よく)

nicely; properly; well; skillfully; skilfully; frequently; often

眠る (ねむる、ねぶる)

to sleep (not necessarily lying down); to die; to close one's eyes

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Reading: サク

Meanings: yesterday, previous

Readings: ヤ、よ、よる

Meanings: night, evening

Readings: ミン、ねむ.る、ねむ.い

Meanings: sleep, die, sleepy