Prepositions in category 1 are often fused with following articles, forming the preposizioni articolate: `agli' (`a'+`gli'), `ai' (`a'+`i'), `degli' (`di'+`gli'), `dello' (`di'+`lo'). These compounds, which can be found instantiated only in a corpus, are tagged with the tag (E) plus the morphological features of the fused article.
| Attribute | Value | It. example | It. tag |
| Formation | simple | di, a, da | E |
| fused | dagli, agli | E/mp | |