ABSTRACT
Generally speaking, a compound sentence consists of several clauses whose subjects may be the same, different, visible, or invisible. If the subjects of the clauses in a compound sentence are the same, only one subject usually appears and the rest are hidden, except for a certain rhetorical effect. This phenomenon is called invisibility of the subject, which results from the syntactic connection among clauses. The subject can appear in front of the first clause and in front of the middle clause. Conjunctive words include conjunctions and some adverbs that help connect the clauses in a compound sentence. There are two positions for conjunctions, one of which is before the subject of the clause and the other of which is after it. When the subjects of two clauses are different, the conjunction of the first clause should appear before the subject. As for the conjunction of the second clause, its position is fixed before the subject of the second clause.
