| 1. Grammar Adverbs and adjectives=> Adverbs
                              (1)
  => Adverbs
                              (2)
  => Adverbs
                              (3)
  => The
                              position adverbs and adverbials
  => Adverbs
                              and adjectives (1)
  => Adverbs
                              and adjectives (2)
  => Adjectives
                              used as nouns
  class 7 => Adverbs
                              with two forms and different meanings
  class 9 => Adverb or adjective?
  class 9 
 Articles
 => Articles:
                              a or an? (1)
  => Articles:
                              a or an? (2)
  => Articles
                              (1)
  => Articles
                              (2)
  => Article
                              (3)
  => Article
                              (4)
   Comparisons=> Comparisons
                              (1)
  => Comparisons
                              (2)
  => Comparisons
                              (3)
  => Comparisons
                              (4)
  => Comparisons
                              (5)
  => Comparisons
                              (6)
  The genitive  => The genitive (1)  class 5+ Gerunds and infinitives => Gerund or infinitive (1)  class 8+ => Gerund
                              or infinitive (2)
  class 9+ => Gerund
                              or infinitive (3)
  class 8+ => Gerund
                              or infinitive (4)
  class 8+ => Gerund
                              or infinitive (5)
  class 8+ => Gerunds
                              after prepositions (6)
  class 8+ => Gerund
                              or infinitive (7):"forget",remember","stop"
  8+ => Gerund
                              or infinitive (8)
  class 8+ => Gerund
                              or infinitive (9): "mean", "try, "start"
  class 8+ => Gerund
                              or infinitive after (10)"try"
  class 8+ => Gerund
                              with its own subject (11)
  class 8+ => Gerund
                              or infinitive (11)
  class 8+ => Gerund or infinitive (12)
  class
                                8+ => Gerund or infinitive (13)
  class 7+ => Gerund or infinitive (14)
  class 8+ => Gerund or infinitive (15)
  class 9+ The future=> The Future (1)
  If-clauses=> Type I (1)
  => Type II (1)
  => Type III (1)
  => Type
                              III (2)
   => Type
                              II+III
  Modal auxiliaries=> Modal
                              auxiliaries (1)
  class 8+ => Modal
                              auxiliaries (2)
  class 9+ => "Need"
                              and "dare" as auxiliaries or full verbs
  class 9+ Negations=> Negation
                              (1)
  => Negation
                              (2)
  Participles => Participles
                              (1)
  class
                              10 + The
                              passive=> The passive (1)
  class 7 + => The
                              passive (2)
  class
                              7 + => The
                              passive (3)
  class
                              7 + => The
                              passive (4)
  class
                              7 + => The
                              passive (5)
  class
                              7 + => The passive (6)
  class 7+ => The
                              passive (7)
  class 11+  Prepositions
                              => Prepositions
                              (1)
  => Prepositions
                              (2)
  => Prepositions
                              (3)
  => Prepositions
                              (4)
  => Prepositions
                              (5)
  => Prepositions
                              (6)
  => Prepositions
                              (7)
  => At
                              the butcher's
   Pronouns=> German
                              "sich"
  => Possessive pronouns
  class 5 => this/these
                              (1)
  class
                            5 => this/these
                              (2)
  class
                            5 => this/that/these/those
  => what/which
  class
                            7 Questions and answers:=> Short answers
  class 5 => Questions 1
  class 5 => Questions 2
  class 5 => Questions 3
  class
                                    5 => Question
                              tags (1)
  class 6 => Question
                              tags (2)
  class
                              6 => Question
                              tags (3)
  class
                              6 => Question
                              tags (4)
  class 6 => Question
                              tags (5)
  class 11 => Questions:
                              Truancy
  class 8 Relative clauses=> Defining
                              and non-defining relative clauses (1)
  => Defining
                              and non-defining relative clauses (2)
   => Defining
                              and non-defining relative clauses (3)
   => Defining
                              and non-defining relative clauses (4)
   => Defining
                              and non-defining relative clauses (5)
   Reported speech=> Transformation
                              into indirect speech
  => Transformation
                              into direct speech
   
 Word order => Twelve
                              mixed sentences
  Verbs (tenses)
 => Present
                              tense (1)
  class 5 => Present tense (2)
  class 5 => Present
                              tense (3)
 
   => Present perfect (1)   => Continuous
                              or simple form? (1)  => Continuous
                              or simple form? (2)
  => Mixed
                              tenses
  => Past
                              perfect (1)
  => Past
                              perfect (2)
  => Past
                              perfect (3)
  class
                            7 => Past
                              tense (1)
  class
                            6 => Simple past or past progressive?
                              (1)
  class
                            6 => Simple past or past progressive?
                              (2)
  class
                            6 => Simple past or past
                                    progressive?  +
                                  "while" or "when"
  => Simple
                              past or past progressive? A trip to London
  => Simple
                              past or present perfect (1)
  => Simple past or present perfect (2)
   => Simple
                              past or present perfect (3)
  => Simple
                              past or present perfect (4)
  => Simple
                              past or present perfect (5)
  => Since/for
                              (1)
  class 7 => Since/for
                              (2)
  class 7 => Since/for
                              (3)
  class 7 => Past,
                              present perfect, present tense
  => Irregular
                              verbs (1)
  => Irregular
                              verbs (2)
  => Irregular
                              verbs (3)
  => Irregular
                              verbs (4)
  => Irregular verbs (5)
  => State verbs and active verbs
  => There
                              is.../There are...
  class 5 => want+object+to-infinitive
  class 6 
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