nie wiem

I don't know

dlaczego

why (for what cause, reason, or purpose)

tak

• Adv

  1. like this; so (in this way)
  2. so (used for emphasis)

• Intj
• Particle

cię

1. genitive singular mute of ty
2. accusative singular mute of ty

to

• Conj

  1. used to attribute to the known object a characteristic that helps one know more about the topic; may optionally be followed by jest
  2. used to juxtapose elements that are equivalent
  3. used to indicate that the subject of the conversation has peculiarities which are familiar to the interlocutors, so that nothing else needs to be said about it in order to understand the topic
  4. in that case, then (used in if-constructions)

• Particle
• Pron

bawi

third-person singular present of bawić

nie

• Particle

  negation particle; no, not

• Verb
• Pron

wiem

first-person singular indicative present of wiedzieć