Wanna ask : my Boy is 22 months old.. still can't speak in full sentences .. only know the following : Clock , banana (nana), boat, milk , Amen (say amen b4 food) , nose, head, eyes, mouth, Brother (in Chinese) , Mother (in chinese), daddy , watch , egg, I want , I know , letter A, B, C , I don't want . , meow, dog That is about all he can say .. I'm worried cos some of my frens with 2015 baby already speaking quite well.. is there a need for me to send him for speech therapy ?