How to train my cat to use the litter box?
Put her in the litter box, take her paw and use it to scratch around a little (she will take to doing it herself). Do this every once in a while. After you’ve had her a while you’ll get to know her mannerisms; when you see her acting like she has to go potty, put her in the litter box. When she has an accident, put the poo in the litter box and cover it up with some litter. Then put her in the litter box and let her see it so she’ll associate the two. Keep at it! She will learn eventually.