私がそこへ着いた時にはダンス・パーティーはすでに始まっていた。

Sentence Analyzer

私がそこへ着いた時にはだんす・ぱーてぃーはすでに始まっていた。

English Translation

The dance had already started when I got there.

Furigana

私(わたし)がそこへ着(つ)いた時(とき)にはダンス・パーティーはすでに始(はじ)まっていた。

Romanji

Watashi ga soko e tsuita tokini wa dansu pa-thi- wa sudeni hajimatteita.

Words

私 (わたし、わたくし)

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

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

其処 (そこ)

there (place relatively near listener); there (place just mentioned); that place; then (of some incident just spoken of); that (of point just raised); you

へ (へ)

indicates direction or goal (e.g. "to")

着く (つく)

to arrive at; to reach; to sit on; to sit at (e.g. the table)

時に (ときに)

by the way; incidentally; sometimes; occasionally

は (は)

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

ダンス (ダンス)

dance

・ (なかぽち)

middle dot (typographical symbol used between parallel terms, names in katakana, etc.); full-stop mark at mid-character height; interpoint (interword separation)

パーティ (パーティ、パーティー)

party

既に (すでに、すんでに)

already; too late

始まる (はじまる)

to begin; to start; to commence; to happen (again); to begin (anew); to date (from); to originate (in)