YOU SAID:
I know the longest word in English it's : PNEUMONIAULTRAMICROSCOPICSILIVICONISIS
INTO JAPANESE
私は英語で一番長い単語を知っています: PNEUMONIAULTRAMICROSCOPICSILIVICONISIS
BACK INTO ENGLISH
I know the longest word in English: PNEUMONIAULTRAMICROSCOPICSILIVICONISIS
INTO JAPANESE
私は英語で最も長い単語を知っています: PNEUMONIAULTRAMICROSCOPICSILIVICONISIS
BACK INTO ENGLISH
I know the longest word in English: PNEUMONIAULTRAMICROSCOPICSILIVICONISIS
That didn't even make that much sense in English.