If you use the wrong yomi, you will usually get something which is not a word of the Japanese language. For each word, you have to learn how it is pronounced as well as how it is spelled.
This is true in English as well: if you see the combination "ei" in a word, how do you know whether to pronounce it as in "eight", as in "their", as in "height", as in "seize" or as in "being"? The letters by themselves are not a complete guide to pronunciation in English, but if you choose the wrong pronunciation, you will usually get something which is not a word.
December 14, 2015 at 12:50pm