Na

Adposition

  to

Pronoun

  Staś

Proper noun

 przesunął  usta

Noun

  do

Adposition

  jej

Pronoun

  ucha

Noun

  i

Coordinating conjunction

 rzekł szepcząc.

At this, Stas moved his mouth to her ear and said, whispering.

At this, Stas moved his mouth to her ear and said, whispering.