Questions & Answers about Proszek był na podłodze, więc wzięłam ścierkę i wiadro.
Because the sentence is in the past tense.
- był = was
- It is the past tense of być = to be
- It agrees with proszek, which is a masculine singular noun
So:
- proszek jest na podłodze = the powder is on the floor
- proszek był na podłodze = the powder was on the floor
Because the speaker is female.
In Polish, the past tense changes depending on the gender of the speaker in the 1st person singular:
- wzięłam = I took (said by a woman)
- wziąłem = I took (said by a man)
That is very normal in Polish and happens with many past-tense verbs:
- zrobiłam / zrobiłem = I did
- poszłam / poszedłem = I went
The dictionary form is wziąć, meaning to take.
wzięłam is a past-tense form built from that verb.
A learner often finds this difficult because the forms look quite different:
- infinitive: wziąć
- past tense, feminine singular: wzięłam
- past tense, masculine singular: wziąłem
This is just one of those verbs whose forms need to be learned as a pattern.