1.1 Relative Pronouns and Clauses
          1.2 The Passive
          1.3 The Tenses
                    1.3.1 The Present Tenses
                    1.3.2 The Past Tenses
                    1.3.3 The Perfect Tenses
                    1.3.4 The Future Tenses
          1.4 Subordinate Clauses
          1.5 Clauses of Reason, Result, and Time
          1.6 The Subjunctive
          1.7 The Present Participle
          1.8 Conditional Sentences
                    1.8.1 Type-I
                    1.8.2 Type-II
                    1.8.3 Type-III