Breakdown of Dobre partnerstwo opiera się na wzajemnym zaufaniu.
dobry
good
zaufanie
trust
partnerstwo
partnership
opierać się na
to be based on
Questions & Answers about Dobre partnerstwo opiera się na wzajemnym zaufaniu.
Why is wzajemnym zaufaniu in the Locative case in this sentence?
This is governed by the verb phrase opierać się na (to be based on). When the preposition na is used to express what something is founded upon, it strictly requires the Locative case. Therefore, the nominative phrase wzajemne zaufanie changes to the Locative wzajemnym zaufaniu.
The current lesson also covers polegać na. How would the meaning change if we used polega na here instead?
Opierać się na focuses on the foundation (a partnership is built on trust). If you said Dobre partnerstwo polega na wzajemnym zaufaniu, you would be saying that a good partnership consists of or is fundamentally about mutual trust. Both verbs take the Locative case and make perfect sense here, but opiera się na better highlights trust as the structural base of the relationship.
What are the base forms of wzajemnym zaufaniu, and how are their Locative endings formed?
The nominative base forms are the adjective wzajemny and the neuter noun zaufanie. Neuter nouns ending in -nie (which are usually verbal nouns) always take the ending -niu in the Locative case. The adjective takes the standard neuter Locative ending -ym to match.
Could I use bazować na as a synonym for opierać się na in this sentence?