Pronunciation

My No. 1 pet peeve: hearing people, especially experts in various fields (except linguistics)
pronounce "processes" as if its singular form were "procesis." Similar uninformed mispronunciations include words like "biases."

Systematic mispronunciations by non-native speakers of English 非英語母語者系統性發音問題

To Schwa or Not to Schwa

Hypercorrective intrusive R