 For example, English speakers recognize that the words "dog" and "dogs" are closely related, differentiated only by the plurality morpheme "-s", only found bound to noun phrases.Speakers of English, a fusional language, recognize these relations from their innate knowledge of English's rules of word formation.They infer intuitively that "dog" is to "dogs" as "cat" is to "cats"; and, in similar fashion, "dog" is to "dog catcher" as "dish" is to "dishwasher".