Trimming

Hi everyone,  

I am new around here and new to CorelDRAW as well.

i am using CorelDRAW X8 and i have a bit of a trimming issue, so every time i trim with a basic square, the shape of the square completely disappears.

what i am trying to do. is keep the other part of the square that wasn't trimmed.

Any help would be appreciated.

thank you !