Just as 才 (cái) can express lateness, 就 (jiù) can be used to indicate that something happened earlier or sooner than expected. It can also be used in the near future to indicate something will happen very soon.
Structure
Subj. + Time + 就 + Verb
Subj. + [Point in Time] + 就 + Verb + 了
Subj. + Time Period + 就 + Verb + 了
Keywords
就 · 了
Used for
Expressing time and date · Expressing attitude · Sequencing events in time
Summary, structure, classification, and adapted sentence examples draw from the AllSet Learning Chinese Grammar Wiki under CC BY-NC-SA 3.0; changes were made. This noncommercial reference is based on an October 2023 snapshot.