The letter s and used toWhen s is /s/, /z/, or /ʃ/, and the reduced past-habit form.Related learning areasEnglish PronunciationRelated conceptsIntonation in question tagsLinking, and the spellings ough and aughRegular and irregular past participlesSentence rhythm and the weak form of haveSentence stress and word stressShort and long vowel soundsQuestionsAll questions in this subjectStart learningStart free practice