Questions & Answers about Proszę o ostrożność.
How is the word ostrożność formed from its base adjective?
It comes from the adjective ostrożny (careful, cautious). By dropping the adjective ending -y and adding the suffix -ość, we create the abstract noun ostrożność (caution, carefulness). This suffix works exactly like "-ness" or "-ty" in English.
Are all nouns ending in -ość feminine?
Yes! Any abstract noun you form by adding -ość is feminine. This is a very reliable gender rule in Polish. However, because these words end in a soft consonant (ć) rather than the typical feminine -a, they follow a different declension pattern than most feminine nouns.
The verb prosić (to ask) is followed by o. What case does this combination require?
When prosić is used with the preposition o to mean "to ask for" an object or concept, it always requires the noun to be in the accusative case.
If o requires the accusative case, why doesn't the ending of ostrożność change?
Because ostrożność is a feminine noun that ends in a consonant. For all feminine nouns ending in a consonant (which includes every -ość noun), the accusative form is exactly identical to the nominative dictionary form. You don't need to add an -ę like you would for feminine nouns ending in -a.
Why do we need the preposition o here? Couldn't I just say Proszę ostrożność?
If you drop the o, the sentence breaks grammatically. When asking for a noun, you must use the structure prosić o + accusative. Without o, the word proszę acts more like the standalone polite particle "please" or "here you go", which cannot directly govern a noun like ostrożność to mean "I am requesting caution."
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