Grammar › N4 · 06 Reasons, purposes & contrast
ために: in order to; because
N4 · 06 Reasons, purposes & contrast
After a verb, gives the purpose (volitional) or cause (past/fact).
Dictionary form + ために = purpose, same subject. Plain past/fact + ために = cause, written style.
Examples
日本語を勉強するために、日本へ来ました。
I came to Japan in order to study Japanese.
事故があったために、電車が遅れた。
The train was late because there was an accident.