wierzyłem

first-person singular masculine past of wierzyć

mu

• Pron

  dative singular mute of on

• Intj

przez

1. across (physically)
2. through (physically)
3. by (used in passive constructions)
4. via (by means of)
5. over (in certain colocations)
6. because of
7. for (used in time constructions)

chwilę

accusative singular of chwila