Why "ch" pronunciation rule doesn't occur for words such as "durch", "manchmal"? As we know "ch" in the middle syllable or when it comes at the end of a word could pronounce just like "sh" in English, when it's proceeded by these vowels: {ö, ä, ü, i, e} And just like "kh" in English, when it's proceeded by these vowels: {o, a, u} So, the words "durch", "manchmal" and "manche" are exceptions for this rule! Is there any other exception for that?