喫煙が肺がんの原因になっている場合が多い。

Sentence Analyzer

English Translation

Smoking is responsible for many cases of lung cancer.

Furigana

喫煙(きつえん)が肺(はい)がんの原因(げんいん)になっている場合(ばあい)が多(おお)い。

Romanji

Kitsuen ga haigan no gen'in ni natteiru baai ga ōi.

Words

喫煙 (きつえん)

smoking

が (が)

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

肺がん (はいがん、はいガン)

lung cancer

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

原因 (げんいん)

cause; origin; source

に (に)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

成る (なる)

to become; to get; to grow; to be; to reach; to attain; to result in; to prove to be; to consist of; to be composed of; to succeed; to be complete; to change into; to be exchanged for; to play a role; to be promoted; to do ...

場合 (ばあい)

case; situation

多い (おおい)

many; numerous