DS1, who is 3, has generally good language I think. He is at nursery 2 days a week and they have no concerns about his development (as an over anxious mother I have checked). However, I have noticed that a certain amount of what he says (perhaps 10%, maybe more) seems to be 'learnt phrases'. For example, my DH used to say 'It's a lovely sunny day' a lot to him (I found it very annoying actually he sid it so frequently), and I have noticed that DS quite often says it now, coping the exact words, sometimes even if it's raining!
Also, he has the habit sometimes repeating whole chunks of books we have read together. I do read to him a lot as he loves it, but this seemingly meaningless repetition of parts of books seems a bit odd to me, and I know it can be flag for ASD.
Does anyone have any experience of an otherwise NT preschooler doing anything similar? Does anyone think it warrants further investigation?