When
/wˈɛn/
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Definition
(adv) At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time.
Sentence Examples
I suppose it's different when you think about it over the long term.
I'll call them tomorrow when I come back.
CEFR Practice Quiz
Please tell me ____ you are ready to start the meeting so that I can send the documents to the manager today.