私は昨晩たいへん遅くまで起きていました。

I stayed up till very late last night.

私(わたし)は昨晩(さくばん)たいへん遅(おそ)くまで起(お)きていました。

Watashi wa sakuban taihen osoku made okiteimashita.

私 (わたし、わたくし)

I; me; private affairs; personal matter; secrecy; selfishness

は (は)

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

昨晩 (さくばん)

last night

大変 (たいへん)

very; greatly; immense; enormous; great; serious; grave; dreadful; terrible; difficult; hard; major incident; disaster

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: シ、わたくし、わたし

Meanings: private, I, me

Reading: サク

Meanings: yesterday, previous

Reading: バン

Meanings: nightfall, night

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