sher, I think I may have mentioned before about my nephew who was also very slow to speak. He is and was undeniably very bright and understood everything said to him, he could also technically make all the required sounds for speech, it was just that the bit of his brain that translated the thoughts into words seemed to not be wired right. He had a couple of words (quite long ones) that were crystal clear, the rest were more or less just grunts. However, the young brain is a marvelous thing, and with regular speech therapy, he has massively improved and is generally very understandable. The family recently moved from Scotland to the south and his teacher did notice a slight issue, but had put that down to his accent. In early primary, they had to teach him to read in a different way from the norm here which is synthetic phonetics as that wouldn't work for him. I think they taught him the old fashioned way of word recognition. He is 9 now and as I say is doing really well and surprisingly, even when his language was at it's worst, other kids always understood him, it was only the adults that struggled. I think they key here is getting him the right support and making sure that is followed through. I'll try to find out whether his condition actually has a name and then you can google to see if it sounds right.