Essential Spanish Grammar

In English we often form adverbs by adding -ly to an adjective, as in clear, clearly, new, newly. In Spanish many adverbs are formed similarly by adding -mente to the feminine form of the adjective.
absoluto absolute
absolutamente absolutely
claro clear
claramente clearly
rápido rapid
rápidamente rapidly

M.
Masculine
F.
Feminine
SING.
Singular
PL.
Plural
LIT.
Literally
Ud., Vd.
Usted
Uds., Vds