Even Irish people whose main language since birth is English do this. There's a verb in Gaeilge which does exist in English but is translated as "does be". Examples:

- He does be eating his breakfast

- She does be out walking the dog

It's the continuous/habitual form of to be, so the implication is that she does be walking the dog everyday, or regularly. He does be eating his breakfast everyday.

The interesting thing is that you'll meet Irish people who were never fluent in Irish - learned it in school, sure, but never spoke it daily - who still use this conjugation when speaking English.