 Especially in the large picture crosswords, both conjugation of verbs and declension of adjectives and nouns are allowed.A Swedish clue like ""kan sättas i munnen" = "sked"" ("can be put in the mouth" = "spoon") can be grammatically changed; ""den kan sättas i munnen" = "skeden"" ("it can be put in the mouth" = "the spoon"), as the definite form of a noun includes declension.From their origin in New York, crosswords have spread to many countries and languages.