What you will learn
Вы научитесь собирать короткое сообщение об изменении планов: в нём будет понятна проблема, новое предложение и то, что должен сделать адресат.
A useful change-of-plan message
Hi Leo — about our cinema trip tonight...
I can't make the 6:30 film.
My train is delayed.
Could we go at 8:15 instead? Does that work for you?
Compare two messages
A: Hi. Problem. Later maybe? B: Hi Leo — about the film tonight: my train is delayed, so I can't make the 6:30 showing. Could we go at 8:15 instead? Does that work for you?
Message B is not better because it is longer. It is better because the reader can act: the old plan, problem and alternative are all clear.
Name the change directly
Useful phrases include I can't make..., I'm running late, we need to move..., and the time has changed. I can't make the 6:30 film means you cannot attend it; it does not mean you cannot create it.
Keep the reason proportionate
One short reason is usually enough: My train is delayed. Avoid a long story unless the details change what the reader should do.
Offer a complete alternative
An alternative needs the missing practical details: day, time, place or action. Compare Can we meet later? with Could we meet at 7 outside the station? The second version can be accepted or rejected immediately.
Use instead to replace the old plan: Could we meet on Sunday instead? Use still to check what has not changed: Can you still come?
Tone
For friends, Can we...? is natural. Could we...? is a little softer. Add Sorry for the late notice when the change is inconvenient or very late. Do not apologise repeatedly; clarity and a workable alternative matter more.
Try it yourself
Write a four- or five-sentence message to a friend. Change one real or imagined plan, give one brief reason, offer an exact alternative and ask for confirmation.
Check: Can the reader identify the old plan, the change and the next action without asking another factual question?