A study comparing some grammatical and discourse features of the language of native-English-speaking and non-native-English-speaking parents of primary school children found that those children whose parents address them in interlanguage of English, frequently the case when the parent has not achieved native fluency, often need to repair the language of their parents in various ways in order to make it intelligible. Features examined include alternation between native language and interlanguage English, number of words used in utterances, fillers, routine utterances, connectives, error patterns, message restoration, and omissions. Social, linguistic, and educational implications are discussed. (MSE)