etc. To form adverbs from adjectives, the adverbial suffix is generally added to the feminine singular of the adjective, whether or not it differs from the masculine singular. Thus: ("clear", m. sg.) → (f. sg.) → ("clearly") ("fast, rapid", m. sg.) → (f. sg.) → ("fast, quickly, rapidly") ("natural", m. & f. sg.) → ("naturally") ("sad", m. & f. sg.) → ("sadly") ("bold", m. & f. sg.) → ("boldly") The adjectives ("good") and ("bad") have irregular adverbial forms: ("well") and ("badly"), respectively. As in English, some adverbs are identical to their adjectival counterparts. Thus words such as ("early"), ("slow"), and ("deep") can also mean "early" (as in English, as in "He arrived early") "slowly", and "deeply", respectively. In series of consecutive adverbs that would each end in on their own, the is dropped from all but the final adverb, and the others are left as if they were adjectives in the feminine singular. Thus: = "quickly and easily" = "slowly, carefully, and skillfully" = "partially or completely" There are also a wide variety of adverbial phrases in Spanish, such as ("often"), ("everywhere"), ("suddenly"), ("finally"), and ("however, nevertheless"). As with adjectives, the comparative of adverbs is formed by placing ("more") or ("less") before the adverb. Thus ("earlier"), ("faster, quicker, more quickly"), ("less interestingly"), etc. The superlative is formed by placing the neuter article before the comparative, although it is generally used with an additional qualifier phrase such as ("that you can") or ("of all"): ("as quickly as you can", lit. "the most quickly that you can"), ("most interestingly of all"), ("the least clearly of them"), etc. As with their corresponding adjectival forms, ("well") and ("badly") have irregular comparative forms ( ("better") and ("worse")), and and are the comparatives of ("much, a lot") and ("a little"), respectively. Prepositions Spanish has a relatively large number of prepositions, and does not use postpositions. The following list is traditionally cited: Recently, two new prepositions have been added: and , usually placed at the end to preserve the list (which is usually learnt by heart by Spanish students). This list includes two archaic prepositions ( and ), but leaves out two new Latinisms ( and ) as well as a large number of very important compound prepositions. Prepositions in Spanish do not change a verb's meaning as they do in English. For example, to translate "run out of water", "run up a bill", "run down a