〜たら

Pattern
〜たら
Level
N4
Reading
たら
Meaning
If / when / once
Attaches to
Verb/Adj (た-form) + ら, Noun/Adj-na (だった) + ら
Nuance & register

Most common and natural conditional in spoken Japanese.

Example

日本に着いたら、電話してください。 Please call me when you arrive in Japan.

Easily confused with

〜と (to) which is for natural consequences, whereas 〜たら is a highly versatile conditional, often for one-time events.

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