Friends of Gabriel Chantayan

I have now spent an evening explaining to a nine-year-old that his book lies to him.

Grammar_Vigil, achte bitte: the textbook is not lying per se; it is publishing a descriptively attested regional variation without labelling it as such. "I have went" appears in the Appalachian English dialect corpus from 1968 onward (see: Wolfram & Ward, 1972, 'American Dialects'), particularly in western NC and eastern TN. The OED lists "went" as a past participle alongside "gone" for some British regional dialects as early as the 15th century. So the textbook is not wrong from a certain corpus-linguistic perspective - it is simply irresponsible in pedagogical execution. The nine-year-old should know that "I have gone" is the prestige form and "I have went" is the form his grandfather might use when talking about a hunting trip in 1983. The distinction is sociolinguistic, not grammatical. Bitte give him my regards and tell him the German exchange student says his textbook is a primary source document about class markers, not a grammar book