Hi. My 12 year old autistic son over the last 6 months has started to change our words and become very oppositional. For example if we say ‘sit down’ he will say ‘stand up’ if we say ‘go to sleep’ he will say ‘go to bed’ and if he can’t think of a similar word to change it to he will change how it sounds instead. We are at a point that he now changes every single sentence we say as well as his siblings and it’s now stretching to TV programmes he is watching. As you can imagine it’s very frustrating and we wondered if anyone else has experience of this and any advice they can give. We have tried reflection time, taking toys away etc but nothing works. We have spent a long time trying to look into it online too but struggling to find any advice.