kupić

kupić

"To buy."

In this sentence, 'kupić' means 'to buy' and is used in its infinitive form to express the intention of purchasing an item.

Chcę kupić książkę w tej księgarni.

I want to buy a book at this bookstore.

In this sentence, 'kupiłam' is the past tense form of 'kupić' (in the first person singular, feminine) indicating a completed action of buying something in the past.

Kupiłam wczoraj świeże warzywa na targu.

I bought fresh vegetables at the market yesterday.

Here, 'kupić' is used in its infinitive form as part of the phrase indicating necessity (with 'muszę', I need) of performing the action of buying in the future.

Muszę kupić mleko przed powrotem do domu.

I need to buy milk before returning home.