How to train a 2 kittens to get along with a adult, that don't get along?

Question

They are all tabby cats. Kittens are male and female. Adult is female. Tried spraying water and treats Kittens didn't like treats. adult did. Adult wont come out from under bed alot. HELP!!!!!!!

Answer 1

some cats just don't like other cats!  i  have 3 cats one of mine is like that.