1. Using the schwa symbol:
* ə ∅ You could simply use the schwa symbol (ə) itself, followed by an empty circle (∅) to indicate the "was here" concept. This is a concise and clear option.
2. Using other symbols:
* ə / The schwa symbol followed by a slash could indicate that the schwa was present but no longer is. This option is more akin to a note or reminder.
3. Using descriptive text:
* (schwa was here) You could use parentheses and plain text to communicate the idea. This is clear and unambiguous, but perhaps less elegant than a symbol.
4. Using specific context:
* The best option depends on the specific context. Are you working on a phonetic transcription? A linguistic analysis? An educational document? The choice of symbol should be informed by your audience and the purpose of the notation.
Ultimately, the best way to represent "schwa was here" is to choose a symbol that is both clear and easily understood by your intended audience.