Explain the principles of the nativist theory of language development and evaluate the challenges made by researchers working from other theoretical perspectives.  Refer to research evidence to support your views.

To produce Diphtong /Ai/: Move the jaw down. Quickly produce the short a sound . Move the lips in a smiling position as the jaw is put to its rest. Position the lips as if smiling. Produce slightly the second sound which is the short i.

For Language study, areas marked and subdivided – it helps in analytic & systematic study. Language has hierarchical structure

In grammar, sentence clause structure is the classification of sentences based on the number and kind of clauses in their syntactic structure. Such division is an element of traditional grammar.

  Syntax is related to morphology through its domain because everything that is larger than a word is the domain of syntax where the morphology is one considers the structure of words while everything else is left to syntax.