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         . 1.       (): Nouns Verbs answer   to answer   walk  ,  to walk  ,  work   to work   order   to order   change   to change   help   to help   Adjectives Verbs free   to free   clean   to clean   2.     : Nouns Verbs conduct   to conduct   contrast   to contrast   increase   to increase  () export   to export   import   to import   present   to present   3.      : Verbs Nouns to advise   advice   to live   life   to believe   belief   to prove   proof   to choose   choice   to lose   loss  ,  to use   use   to behave    behaviour   to fly   flight   to grow   growth   to practise   practice   to serve   service   to know   knowledge   to die   death   to complain   complaint   to speak   speech   to think   thought   to weigh  ,  weight   Adjectives Nouns deep   depth   high   height   hot   heat   long   length   poor   poverty   proud   pride   strong   strength   young   youth   warm   warmth   wide   width   4.   : Verbs → Nouns   | -age | pass  passage | -ment | improve  improvement |   | -al | arrive  arrival | -sion | divide  division |   | -ance | appear  arrearance | -tion | invent  invention |   | -ation | admire  admiration | -ure | Fail  failure |   | -ence | differ  difference | -y | recover  recovery |   | -ion | confuse  confusion | -ee | employ  employee |  Adjectives → Nouns   | -ance | important  importance | -ity | popular  popularity |   | -cy | vacant  vacancy | -ment | excited  excitement |   | -ence | silent  silence | -ty | necessary  necessity |   | -ion | attractive  attraction | -y | difficult  difficulty |   | -(i)ness | lazy  laziness
 kind  kindness |  |  Nouns, Verbs → Adectives   | -ic | energy  energetic | -able | to breake  breakable |   | -(ic)al | practice  practical
 profession  professional | -ive | to attract  attractive |   | -ous | danger  dangerous |  |   | -y | rain  rainy |   | -ly | friend  friendly |   | -ful | beauty  beautiful |   | -less | friend  friendless |  5.    dis-, mis-, il-, im-, in-, ir-, un -,           : to obey  to dis obey, legal  il legal, patient  im patient, definite  in definite, regular  ir regular, lucky  un lucky, fortune - mis fortune.      : convenient  in convenient, un convenient; decisive  in desicive, un desicive.          (): possible  im possible  im possibility. But: pleasant  un pleasant  dis pleased  dis pleasure; comfortable  un comfortable  dis comforted  dis comfort.   
 
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