Observing the distributional properties of PP-dislocations compared with those of cleft sentences, we will examine which restrictions can apply to these syntactic operations. We will draw the following conclusions with respect to this comparative analysis. First, differently from the topicalization, PP-dislocations leave neuter pronouns such as y and en in a clause, which does not exist in English counterpart. Second, the acceptability of PP-dislocations and cleft sentences depends on diverse functions of PPs in a clause. Third, the availability of left/right-dislocations has a direct influence upon the formation of cleft sentences. Finally, we will verify that any PP-displacement out of compound PPs is restricted on account of the A-over-A principle in the syntax