Ah, right, thanks—I was unsure about that one, because I saw it used with "pi" on , and without on the courses I mentioned earlier. I thought perhaps without "pi", "ijo nanpa tu" would be something like "two number-things" or "two numbered things".
mi jan sama ni: tenpo mute la, ona li wile mute toki e nimi lili ni: ona li pana e pilin pona tawa jan ante.
I'm the kind of person who often tends to use a lot of those civilities. It might be tricky for me to suppress that aspect of myself, but at least for the time being, I can try.
I guess depending on the context, you can use "mi pakala" or "pakala mi" or "mi ike" or "ike mi" to say "sorry", right? They all sound slightly different, but probably work at least somewhat, it seems to me. It's like "I made a mistake", "my mistake", "I did wrongly/poorly", "my bad", respectively, probably.