Rick, some parrots don't talk until they are over a year old, some longer and, of course, some never. My grey says the words she wants, some words she never tries to say, some she says immediately. It all depends on a parrot's interest in the words. Sometimes voice inflections are something a grey likes, sometimes because it is related to something they like or want. Or maybe it is a reaction the word brings out of you or someone else. So don't worry about it, Nemo's words will come in Nemo's time and you just have to wait. Don't give up and keep talking to Nemo.