필요�?서식 자료 역시 서식 자료실을 통해�?무료�?내려받을 �?있다�?합니�? If a grammatical basic principle that may be included to 서툴�?is really a vowel �?and there's no other choice other than a vowel �?then that grammatical basic principle can not be extra to 서툴�? It can be incorrect to include any grammatical waiting for link from Forum Profiles (6)