They help make clear a silent last E. There are nine causes for just a silent E in English! Figuring out them all eliminates exceptions. The ch audio: In the beginning of a phrase, use ch. At the end of a word, use tch. If the ch audio is followed https://marcoavoib.bloggactif.com/34020610/english-common-spelling-mistakes-y-words-things-to-know-before-you-buy