Questions & Answers about Tiedätkö tästä sivustosta?
Why are tästä and sivustosta in the elative case?
The verb tietää is a cognitive verb. When you want to say you know about something, tietää requires the connected words to be in the elative case (-sta/-stä). Therefore, saying about this website translates to tästä sivustosta.
What is the difference between sivu and sivusto?
The word sivu means a single page, like a page in a book or a single webpage. The word in this sentence, sivusto, uses the collective suffix -sto to mean a collection of pages, which translates perfectly to a whole website.
Why does the word for this (tämä) change to tästä here?
In Finnish, modifier words like tämä must agree with the case of the noun they describe. Because the main noun sivustosta is in the elative case, the pronoun tämä must also take the elative form, becoming tästä.
How does the question particle work in Tiedätkö?
To form a yes/no question, you attach the particle -ko or -kö to the conjugated verb. The base form is tiedät (you know). Adding the particle makes it Tiedätkö (Do you know?). It takes the -kö form instead of -ko because of vowel harmony with the front vowels in the root verb tietää.
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