Questions & Answers about Mikä ajankohta sopii sinulle huomenna?
Why does this sentence use sinulle (to you) instead of a direct object like in English?
Verbs of suitability like sopia (to suit) and käydä (to be okay) take the allative case (-lle) for the person experiencing the suitability. While English says "suits you", Finnish literally says "suits to you".
Could I use the verb käydä here instead of sopia?
Yes, you can say Mikä ajankohta käy sinulle huomenna? Both verbs are perfectly interchangeable when talking about scheduling, and both require the allative case (-lle). The verb käydä is just slightly more colloquial.
What is the nuance between using ajankohta here rather than just aika?
Aika is the general word for "time". Ajankohta is a compound of aika (time) and kohta (point/spot), meaning it specifically refers to a "point in time", "timing", or "schedule slot". It is very commonly used when arranging appointments to sound precise.
If I want to answer "Five o'clock suits me", how do I apply this grammar rule?
You would answer Viideltä sopii minulle. The verb sopia continues to demand the allative case for the person it suits, so the pronoun "me" translates to minulle.