この発音のルールは「鼻音化」といって入門の第8課で説明されています。

nihonngode kakenainnde.... yomikatadakede kakimasu. sumimasenn..*(^^)* nihonngoto kurabemasu... "aruku" (걷다) toka "naku" (울다) toka - "aruku"---> "aruite"(걷고/걸어서) - "naku"---> "naite" (울고/울어서) kouiuhuni hennkou simasu. "ku"ga gomide "ite"ni naru kotodesu. tada..hitotsudake... "iku" (가다) - "iku"---> "itte"(가고/가서) koredakewa "ite"ni narimasenn. koreto onajidesu.. tasikani "입니다"no hatsuonnwa "ipnida" desuyone... demo hatsuonn siteiruuchini sizenntekini "imnida"ni narimasu. nihonngodewa koreo "音便" to iimsu. tabunn onaji katachidato omoimasu. watasi kannkokujinndesukedo... kannkokugowa bunnpoude setsumeidekinaikotoga aruteido arimasu... kannkokugono bennkyouwa 90% kikitoridesu. dewa ogannbari kudasai.. ~~m(^^)m~~