follows the preposition, the objective case is required, as in "Jack is the boy with whom Jenny fell in love." while * "Jack is the boy with who Jenny fell in love" is ungrammatical. In the case of the construction with a stranded preposition, however, the subjective form (e.g. "who") is commonly used, as in "Jack is the boy who Jenny fell in love with." especially in informal style. Use of the objective case with a stranded preposition, as in "Jack is the boy whom Jenny fell in love with." is somewhat rare, but occasionally found, even in informal style. Summary Variations may be encountered in the spoken and informal English, but the most common distribution of the forms of pronouns in relative clauses follows: That as relativizer instead of relative pronoun The word that, when used in the way described above, has been classified as a relative pronoun; however, according to some linguists it ought to be analyzed instead as a subordinating conjunction or relativizer. This is consistent with that used as a conjunction in (I said that I was tired), or implied in (I said I was tired). According to Rodney Huddleston and Geoffrey Pullum, that is not a relative pronoun but a subordinator, and its analysis requires a relativized symbol R as in (The film that I needed [R] is not obtainable). Here R is the covert direct object of the verb "needed" and has "the film" as an antecedent. A similar analysis is required when that is omitted and implied, as in (The film I needed is not obtainable). There are some grammatical differences between that and the (other) relative pronouns: that is limited to restrictive relative clauses, and it cannot be preceded with a preposition. There are also similarities between the (purported) relative pronoun that and the ordinary conjunction that: the weak pronunciation is (almost invariably) used in both cases, and both of them are frequently omitted as implied. Fused relative constructions English allows what is called a free, fused or nominal relative construction. This kind of relative construction consists of a relative clause that instead of attaching to an external antecedentand modifying it as an external noun phraseis "fused" with it; and thus a nominal function is "fused" into the resultant 'construction'. For example: What he did was clearly impossible. Here "What he did" has the same sense as "that which he did", or