Learn Finnish: Tätä ajankohtaa minä en koskaan unohda.

Finnish word order is relatively flexible, allowing you to move the object to the front of the sentence for emphasis. This highlights the specific thing you are talking about, closely mirroring the English translation 'This time, I will never forget.'

Why is tätä ajankohtaa in the partitive case?

The object of a negative sentence in Finnish is always in the partitive case. Because the main verb phrase here is negative (en ... unohda), both the noun ajankohta and its demonstrative pronoun tämä must take the partitive endings.

What is the difference between aika and ajankohta?

While aika is the general word for time, ajankohta is a compound word that literally means 'time-point'. It is used to refer to a very specific date, scheduled moment, or occasion, making it much more precise in this context than just using aikaa.

Why is the pronoun minä included if the negative verb en already tells us the subject is 'I'?

You can absolutely drop the pronoun and just say Tätä ajankohtaa en koskaan unohda. However, including minä adds a bit of personal emphasis ('I will never forget') and helps balance the rhythm of the sentence after a heavy front-loaded object.