appear
The Italian word 'apparire' is used much like the English word 'appear'. It can be used to indicate that something becomes visible or is now able to be seen, or that something seems a certain way to one's mind or judgment. For example, 'Mi sembra che lui stia per apparire' translates to 'It seems to me that he is about to appear'.
You can't just appear whenever you want.
This phrase is used as an expression of irritation or frustration, directed at someone who shows up unexpectedly or without invitation.
It should appear on the screen in a moment.
This sentence suggests the anticipation of something that is about to appear or show up on the screen, it's normally used in a context where a user is waiting to see some response on a computer or television screen.
He feared that a problem might appear.
This phrase implies worry or fear about potential problems or issues arising or occurring in the future.