彼は昨夜遅くまで起きていた。

彼は昨夜遅くまで起きていた。

He sat up late last night.

彼(かれ)は昨夜(さくや)遅(おそ)くまで起(お)きていた。

Kare wa sakuya osoku made okiteita.

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

遅い (おそい)

slow; late (e.g. "late at night"); too late; dull; stupid

迄 (まで)

until (a time); till; to; up to; to (a place); as far as; to (an extent); up to; so far as; even; only; merely

起きる (おきる)

to get up; to rise; to blaze up (fire); to wake up; to be awake; to stay awake; to occur (usu. of unfavourable incidents); to happen; to take place

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: チ、おく.れる、おく.らす、おそ.い

Meanings: slow, late, back, later

Readings: キ、お.きる、お.こる、お.こす、おこ.す、た.つ

Meanings: rouse, wake up, get up