Questions & Answers about Me juomme viiniä perjantaina.
Why does perjantai have -na added to the end to make perjantaina?
The ending -na is the essive case. In Finnish, you add -na or -nä to a day of the week to say that something happens "on" that day. So perjantai is "Friday", and perjantaina is "on Friday".
How do I know whether to use -na or -nä for days of the week?
It depends on vowel harmony. If the day has back vowels like "a", "o", or "u", you use -na. Since perjantai contains the letter "a", it takes -na.
Why is the word for wine viiniä instead of just viini?
Viini is an uncountable word, similar to water or coffee. When you are drinking an unspecified amount of it, you use the partitive case ending -ä. This changes it to viiniä, which implies you are drinking "some wine" rather than all the wine in the world.
Can I drop the word me and just say juomme viiniä perjantaina?
Yes! Because the verb ending -mme in juomme already tells us the subject is "we", the pronoun me is optional. Including it usually just adds a little bit of emphasis.