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Questions & Answers about Próba jest trudna.
What does próba mean in this sentence?
It literally means attempt, trial, or test. Depending on context, próba can also mean rehearsal (in music or theater) or an assay (in chemistry).
What case and number is próba in?
Próba is in the nominative singular. In Polish, the nominative case marks the subject of a sentence.
Why is the adjective trudna used here instead of trudny?
Polish adjectives must agree with the noun they modify in gender, number, and case. Since próba is feminine, singular, nominative, the correct form is trudna (feminine singular nominative), not trudny (masculine).
Why is the verb jest necessary? Can I say Próba trudna?
In standard Polish, the copula jest (to be) is required in the present tense to form a complete sentence. Omitting it (Próba trudna) is only allowed in headlines, labels, or very colloquial/poetic speech. For everyday statements you need jest.
How is trudna inflected—what case is it?