How the reference is maintained

Verb methodology

Sources and review

The reference is compiled from established learner-dictionary conventions and reviewed as structured data for missing forms, duplicate entries, examples, and pronunciation fields.

Accepted variants

Widely accepted British and American alternatives—such as learned and learnt—can both be included. A quiz accepts a listed variant without treating another listed form as more correct.

Corrections

Language references improve through careful review. To report a correction, include the verb, the field that looks wrong, and the dictionary or usage source that supports the change.