Datapoint English dialects in the North of England/Levelling of past tense/past participle verb forms: past participle replacing the past tense form

Variety: English dialects in the North of England
Feature: Levelling of past tense/past participle verb forms: past participle replacing the past tense form
Value: B - feature is neither pervasive nor extremely rare
Informants: Graeme Trousdale

Examples

Example 2015:
He swum in the sea