There are several common form validation patterns that designers can use to ensure user input is accurate and consistent. These include required fields, email validation, password validation, and numeric validation. By using these patterns, designers can create a user-friendly and intuitive form validation experience that improves the overall user experience.

In addition to common form validation patterns, designers can also create custom validation patterns to meet specific needs. For example, a designer may create a custom pattern to validate a phone number or a date range. By using custom validation patterns, designers can ensure that user input is accurate and consistent, while also providing a more personalized user experience.

To ensure the best possible user experience, designers should follow best practices when implementing form validation. This includes providing clear and concise validation messages, using color and animation to draw attention to validation errors, and allowing users to easily correct errors. By following these best practices, designers can create a form validation experience that is both user-friendly and effective.