Italian adverbs

A. To form adverbs of manner, add -mente (which corresponds to the suffix -ly) to the feminine form of the adjective:

vero = true
veramente = truly

elegante = elegant
elegantemente = elegantly

comune = common
comunemente = commonly

B. If the adjective ends in -le or -re, the final vowel e is dropped before adding the suffix -mente:

generale generalmente

regolare regolarmente