Sounds like "n" as in "no".

Sounds like "f" as in "far".

Sounds like "a" as in "palm" + "n" as in "no".

Sounds similar to "en" as in "often" or "un" as in "sun", but slightly different.

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)