particles de and ni with koko

why do you say koko de matte kudasai and koko ni tatte kudasai

Hi. While De and Ni can both be used to indicate location of an action, De refers to short-term, one-time actions, while Ni refers to longer, prolonged actions. For example: Ginkou ni tsutomete imasu. / I work in a bank. Bangohan wa, ryouriya de tabeta. / For dinner, I ate at a restaurant. In your above case, I'd probably say that the direction to wait means that the person is going to wait for a short time, while in the second, they're going to be standing in a fixed location for a long time. Or maybe they're being used interchangeably. I'm not entirely sure.

Konnichi wa Anne san to Pascal san! Particle NI is used to indicate the place where an object or person is present. It is also used to mark one's goal or destination. In the sentence "koko NI tatte kudasai" - the NI is used to emhasise "Please stand HERE" Particle DE is used to indicate the place where an action occurs. In the sentence "koko DE tatte kudasai" - the DE is used to emhasise "Please WAIT here" I hope this helps answer your question! - Sayaka san :-)

Yes, thanks =)