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CHAPTER I INTRODUCTION
A. Background of the Study
Nowadays,  it  is  acknowledged  that  English  is  one  of  the  well  known languages  in  the  world.  It  has  become  the  most  widely  studied  foreign
language  on  the  earth.
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English  language  is  an  international  language  that  is mostly  utilized  by  the  word  society  to  get  interracial  interaction  and
communication.  One  of  the  importhant  thing  for  prefaring  in  that comunication is mastering the internasional language, English, whether it is in
written  form  or  in  spoken  form.  As  an  internasional  language,  English  is spoken by most of the people all over the world. It is getting more important.
Many  countries  use  English  to  communicate  and  convey  message  or  idea  to others.
One of the the language which is taught in the school of our country is English  language.  English  is  one  of  the  internasional  language  that  have  an
important  role  in  the  world.  It  is  widely  studied  and  used  as  a  tool  of communication among people all over the world. English becomes one of the
important subject matter taught at school. In Indonesi,a English is considered at  the  first  foreign  language  and  becomes  compulsary  subject  learned  by  all
the student from the elemtery up to university level.
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Jack  C.  Richards  and  Theodore  S.  Rodgers,  Approaches  and  Methods  in  language Teaching, New York: Cambridge University press,1980
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The students study English In the school or in the Course, they expect to learn some abilities, such as ability to listen of English sound, the ability to
read and understand English Book, the ability to speak English, and ability to write English. Those are Abilities of
“Language skills” Listening, Speaking, reading  and  Writing.  Beside  the  four  skills,  the  students  have  to  master
language  components.  One  of  the  language  components  is  grammar  and  its components  are  such  as  morphology,  syntax  and  so  on.    Grammar  is  also
needed even in the communication because it can avoid misunderstanding. By mastering  grammar,  it  is  hoped  that  heshe  can  share  the  information  and  be
more  confident  to  express  the  idea  when  heshe  do  the  communication  with other  people.  If  heshe  is  good  in  saying  the  words  heshe  will  understand
about  the  things  that  heshe  wants  to  share.  The  effective  communication would  be  seriously  impaired  without  the  ability  to  use  grammar  in  a  variety
situation.  The  more  someone  can  master  the  grammar,  the  more  he  or  she proves that he or she is capable in English.
Grammar is an important element to be learned in learning a language because it is used to understand the language. Language without grammar can
cause confusion in comprehending the ideas, opinions, feelings of the person who  expresses  oral  or  written.  English    person  who  is  good  at  grammar  can
communicate with language better than person that is low at grammar. Grammar  is  one  of  the  language  aspects  which  is  taught  to  every
language  learner.  It  is  as  the  basic  knowledge  and  as  important  role  in understandi
ng  the  English  language.  “Grammar  is  partly  the  study  of  what forms  or  structures  are  possible  in  a  language.  Traditionally,  grammar  is  a
description of the rules  that govern how language’s sentences are formed”.
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According to As Paul Robert: “grammar is a body of generalization about how
people say things”.
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Students  who  learn  a  foreign  language  encounter  a  number  of problems, especially with the grammar of the language which are complicated
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Scott  Thornburry,  How  to  teach  grammar,  England:  Pearson  Education  Limited. 1999,p.1
3.  Paul Robert, Understanding grammar, …,p.15
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and which make confusing. When the students learn English, they try to avoid the  grammar  because  it  is  confusing  and  difficult  to  understand.  For  some
students  who  have  a  lack  of  knowledge  in  grammar,  of  course  they  will  get confused how many diff
erent meaning of the verb “in spoken or in writtent”, why  the  verb  in  sentence  must  change,  etc.  There  for  to  make  them  not
confused  anymore,  they  have  to  master  grammar.  By  mastering  it  they  will understand the rules and how the sentences are constructed.
There are many  aspects  discussed in  English grammar one of them is “modal  Auxiliaries”.  or  “modal  verb”  are:  can,  could,  will,  would,  shall,
should,  may,  might,  and  must.  These  auxiliaries  add  to  a  special  semantic component  such  as  Ability,  obligation,  possibility.  They  have  special
grammatical features, have more than one meaning, and also complex. Some modal  change  meaning  in  the  negative  must  be  expressed  with  other
auxiliaries. Eventhough the modals are used only with the simple form of the verb. And here the students still have difficulties to  make the sentence using
auxiliaries and to decide the meaning of the modal. There are two factors that make learning difficulty. The first one is the
internal factors which include physiology factors and psychology factors. And the  second  one  is  the  internal  factors  which  includes  non  social  factors  and
social factors.
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Beside factors above, here the error of the students is for example: they have  no  infinitive  and
the third person singular no’s’. The modal verbs have not only a grammatical function, but also a dictionary meaning must and can
mean  „be  obligate  to’,for  example  in  sentence  :  we  must  study  hard  for English  test.  But  in  reality  some  student  still  makes  mistakes  and  finds
difficulty in identifying modal. Here are examples of wrong sentence that are often made by the student in using the form of modal.
- We must to study hard for English test
- He can to speak English
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Abu  Ahmadi    Widodo  Supriyono,  Psikologi  Belajar,  Jakarta:  PT.  Rineke Cipta.1991. p,75traslated by the writer
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- She could spoke English well, and soon
In this case, the writer is interested to analyze the student’s difficulty in
learning some modal auxiliaries entitled “ Analysis on students’ difficulties in learning  Modal  Auxiliaries
‘CAN’  and  ‘COULD’  “  A  case  Study  At  the Second Year Students of Mts Muhammadiyah 1 Ciputat. It is because there
are  many  students  who  still  face  difficulty  in  understanding  the  meaning, theory
cal      and  the  form  of  modal  Auxiliaries.  By  observing  the  student’s difficulties,  the  writer  tries  to  identify  and  analyze  them.  The  writer  hopes  it
can help the teachers in teaching and learning process.
B. Limitation of the Study