2. The theory of universal grammar (UG) holds that there are
certain basic structural rules that govern language that all
humans know without having to learn them. This is one way to
explain how humans acquire language – if the brain is already
primed to understand certain sentence structures, it explains
how children can understand and speak sentences that they’ve
never heard before. Supporters of this theory point to the
elements that are common in different languages as evidence.
Universal grammar (UG) is a grammar that attempts to
establish the properties and constraints common to all possible
human language. It is our innate systems of principle underlying
the human language . It is an innate systems of principles
underlying the human language property.

3. In linguistics, the theory of universal
grammar holds that there are certain
basic structural rules that govern
language that all humans know without
having to learn them. This is one way to
explain how humans acquire language –
if the brain is already primed to
understand sentence structures.
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4. ―There is no such thing as universal grammar. The rules of
language are not innate but spring from necessity and
circumstance.‖
……….Daniel Everett.
Universal grammar are falsifiable and are therefore
pseudo scientific theory, arguing that the grammatical
generations made are simply observations about existing
language not predictions about what is possible in a
language.
The unlearn ability of languages assumed by UG is based
on a too-strict, ―worst case model of grammar‖.
. . . .Elman et al

5. No one can argue against language being a universal. .
What makes us unique as a species and sets us apart from the
others, is our ability to adjust to our environment to suit our needs
and amplify our powers.
We are already formatted in one language (the mother
tongue) and we normally erase it while learning a new one.
As we observe our own speech, other people’s speech and
the languages of the books and articles we read, we will begin
to find it easy and interesting to recognize the different kinds of
English word, phrase, clause and sentences and the difference
between good and bad grammar. And you will gradually come
to see the different ways in which our own language can be
good or bad no matter how fine it sounds. If your ideas are clear
but are expressed in inappropriate language—language that
has the wrong tone for the situation or makes the wrong
impression – your English is bad. When it expresses your ideas
clearly, in a lively, interesting way, and at the same time is
suitable for the situation, your English is good.