Omitted verb in otherwise-complete sentence is not reported

**The Error**

Sometimes in the process of writing and rewriting a sentence, I accidentally delete the verb of the sentence. This should be flagged as a grammar error, but is not.

**Examples (2-3):**

1. This sentence missing a word.
2. But if you're just looking for quick tips, "Bits & Pieces" the place to start.

**References**

Google Docs

LanguageTool

**Potential Edge Cases**

Sometimes people write incomplete sentences for stylistic reasons, e.g. for a character that is not fluent in the language or still learning.

No source file, test, or entry point is named in the issue. Start by locating the Rust grammar-checking entry point for sentence completeness and reproduce the two examples; confirm with maintainers how stylistic fragments should be handled, then add regression coverage for the agreed behavior.

Written by the indexing model from the issue text.