What it means
たら expresses a condition or a situation that leads to a result. It can mean “if,” “when,” or “after,” depending on context. It follows a verb in its past form, an i-adjective with かったら, a na-adjective with だったら, or a noun with だったら. The result clause can be familiar or polite, while the たら clause itself normally stays in this plain form.
Usage note
たら does not always describe a past event. In a conditional sentence, the past-looking form is part of the grammar and may refer to a future situation. The meaning is decided by context.
How to use it
明日が休日だったら、家でゆっくり過ごします。
If tomorrow is a holiday, I will spend the day relaxing at home.
静かだったら、ここで勉強します。
If it is quiet, I will study here.
忙しかったら、少し休みます。
If I am busy, I will rest a little.
雨が降ったら、家に帰ります。
When it rains, I will return home.
明日が休日だったら、家でゆっくり過ごす。
If tomorrow is a holiday, I will spend the day relaxing at home.
静かだったら、ここで勉強する。
If it is quiet, I will study here.
忙しかったら、少し休む。
If I am busy, I will rest a little.
雨が降ったら、家に帰る。
When it rains, I will return home.
Example sentences
駅に着いたら、母に電話します。
When I arrive at the station, I will call my mother.
宿題が終わったら、テレビを見てもいいです。
When you finish your homework, you may watch television.
天気がよかったら、公園でお弁当を食べます。
If the weather is good, I will eat a packed lunch in the park.
分からない言葉があったら、辞書