Grammar is a large and important category in learning language,
especially in studying English. In modern concepts, grammar may be defined
as a set of morphological and syntactic rule which may be treated together to
make it easier for the learners of language to master and apply to real
situations. Being an ESL student, one may find many difficulties as well as
ambiguity when learning negation, one of important aspect of English
grammar, which can be appeared in every form of texts of many fields as well
as in daily conversation. It is said to be a natural phenomena in linguistic.
However, there is a wide variety of morphological and syntactic rules that
linguists have studied on this category with different point of view for
decades.
In Vietnamese, negation is also considered as an essential category in
grammar. Many studies were pointed out to clear and complete this matter.
However, it is difficult for Vietnamese learners to study negation in English
because there was little contrast between two languages. That the reason why
the topic of negation is chosen for this graduation paper.