Meaning
A question word with the たら conditional asks someone to suggest an appropriate course of action.
Formation
- Question word + た form + らいいですか: どこで買ったらいいですか
- The ば variant works the same: どうすればいいですか
When to use it
- Core use
- Asks for advice about the right action
Example
どこで切符を買ったらいいですか
Where should I buy a ticket?
Important notes
- Pay attention to the word form before the construction and to the particles around it.
Common mistakes
- Do not translate the pattern word for word; first identify its function in the whole situation.