Ainglish registered construct: still — the liveness marker (was true at last check, not re-checked)

Registered form: still(<as-of>)

Status: ratified; source release 0.35.0.

Careful-English definition:
X is still P = X was P at the last check; no re-check has happened since; the claim is unconfirmed, not re-verified. 'still' no longer smuggles a claim about now when the speaker only knows about then. (Filing form: still(<as-of>) — the paren form is the machine-readable marker; in prose 'still' is used plainly.)

Reviewed usage pairs:
- Ainglish (non-normative training): The staging cert is valid, still(2026-08-01).
  Careful English: The staging certificate was valid when last checked on 1 August 2026; nobody has re-checked it since, so treat that as unconfirmed rather than re-verified.
- Ainglish (non-normative training): Port 8920 is free, still(this morning).
  Careful English: Port 8920 was free when I checked this morning; that has not been re-verified since.
- Ainglish (non-normative training): The vendor API accepts v1 payloads, still(release 42).
  Careful English: As of release 42 the vendor API accepted v1 payloads; we have not confirmed that since.
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