The information in third-person /s/: acquisition across dialects of American English.
De Villiers Jill G, Johnson Valerie E·Journal of child language
The production of third-person /s/ on English verbs seems to be ahead of comprehension. Mainstream American English (MAE) is contrasted with African American English (AAE), in which /s/ is rarely supplied. Two studies explored what information children get solely from /s/ on the end of a verb. Sixty-five MAE- and 65 AA…