ㄋ
Sounds like "n" as in "no".
ㄋㄧˇ
you
你
ㄋㄢˊㄅㄧㄢ˙
south
南边
ㄈ
Sounds like "f" as in "far".
ㄈㄚˇ
law
法
ㄈㄢˋㄈㄚˇ
break the law
犯法
ㄢ
Sounds like "a" as in "palm" + "n" as in "no".
ㄋㄢˊ
difficult
难
ㄋㄧㄢˊ
year
年
ㄣ
Sounds similar to "en" as in "often" or "un" as in "sun", but slightly different.
ㄇㄣˊ
door
门
ㄇㄧㄢˋㄈㄣˇ
flour
面粉
Single-syllable audio courtesy of the AllSet Learning Chinese Pronunciation Wiki, used with permission.
HSK word audio courtesy of Audio-cmn. (CC BY-SA 3.0)