The duration for something to "come" depends heavily on the context of what is meant by "a" in the question. For example:
- If referring to process automation development, it can take from a few weeks to several months to complete depending on the complexity and steps involved.
- Roadside assistance usually arrives within 30 to 60 minutes depending on traffic and conditions.
- For an ex-partner to come back after a breakup, surveys suggest an average of about 2.5 months.
- Waiting for membership cards or deliveries can vary from a few days to weeks depending on shipping.
- In software projects, time to completion varies widely but can take several weeks to months based on scope and experience.
If the question refers to a specific kind of event, task, or delivery, providing that detail would allow more precise answers on expected duration. Please specify what "a" relates to for a more targeted response.
