---
title: UIWritingToolsCoordinator.TextDecoration.grammarUnderline
framework: uikit
role: symbol
role_heading: Case
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, visionOS 27.0+]
path: uikit/uiwritingtoolscoordinator/textdecoration/grammarunderline
---

# UIWritingToolsCoordinator.TextDecoration.grammarUnderline

Requests a preview of the text with the grammar indication underline.

## Declaration

```swift
case grammarUnderline
```