The Italian improper prepositions 2: prepositions - adjectives and -participles

-->

We have already spoken about the improper prepostions with adverbs. Now we see adjectives and participles which have this peculiarity.
Italian adjectives that can be used as prepositions are: vicino, lontano, salvo, lungo, secondo ecc.
I can say:

Questa strada è molto lunga and in this case lunga is an adjective, but I can also say
lungo il fiume Tevere si vedono molti uccelli rari. In this case lungo is a preposition.

There are some verbs, normally are participles, which are used almost only like prepositions. They are: durante, mediante, nonostante, escluso, eccetto, ecc. example: