Breakdown of Trzeba dużo pracować.
pracować
to work
dużo
a lot / much
trzeba
one must, it is necessary (+ infinitive)
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Questions & Answers about Trzeba dużo pracować.
Who exactly is working in this sentence, and why isn't there a pronoun like 'ja' or 'on'?
The word trzeba is an impersonal expression meaning 'it is necessary' or 'one must' in general. It doesn't point to any specific person. If you wanted to say specifically 'I have to work,' you would use a personal verb like muszę instead.
Is trzeba a regular verb? Can I conjugate it?
No, trzeba does not change its ending to match a person in the present tense. It is a fixed, unchangeable word used to express a general need or obligation.
Why is the verb pracować left in its dictionary form?
Because it follows trzeba. Whenever you use impersonal necessity words like trzeba (one must) or można (one can), the action verb that comes after it stays in the infinitive (dictionary) form, which usually ends in -ć.
Could I change the word order and say Trzeba pracować dużo?
Yes, Polish word order is quite flexible, and that would be perfectly understood. However, putting describing words like dużo (a lot) right before the verb is the most natural way native Polish speakers build this type of sentence.