How can I format my sd card as inner

My telephone's inner storage is nearly full however there are nonetheless many video games that I wish to play and they’re big in dimension. my gadget had a function so as to add reminiscence card to develop the storage so I took the possibility and purchased one however I don't understand how I can set it as inner and set up recreation's on it. It exhibits a format possibility however not the format as inner one.if somebody is aware of any manner please point out. My gadget is a OnePlus nord ce 4 and the cardboard I'm considering of utilizing is a samsung evo