Basic Adverbs:

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Time	Place	Manner
ahora/in this moment, now	abajo/below, downstairs	adrede/intentionally, on purpose
antaño/the last year	acá/here, over here, this way	alto/aloud
anteayer/the day before yesterday	acullá/thither, there	aprisa/fast, quickly, swiftly
antes/previously, preferably	adentro/in	así/like this, so, that way, thus
aun (aun)/yet, still	afuera/outside	bajo/silently
ayer/yesterday	ahí/there, yonder	bien/well
cuando/when	allá/there	casi/almost, nearly
después/after	allende/on this side	claro/clearly
entonces/then	allí/there, yonder	como/as, like, such as
hogaño/this year	ante/before	cual/as, like, such as
hoy/today	aquí/here	despacio/slowly
jamás/never	arriba/above, on top, overhead, upstairs	duro/hard
luego/soon	cerca/close, near, nearby	excepto/exceptedly
mañana/tomorrow	delante/ahead, formerly, previously	mal/badly
mientras/while, whilst	dentro/inside	pronto/soon
nunca/never	detrás/behind, after	recio/strongly
siempre/ever	donde/where	rudo/brutally
tarde/late	encima/above, on top, upstairs	salvo/with the exception of
temprano/early	enfrente/in front of	sereno/calmly
todavía/still, yet	fuera/outside	Negation
ya/already, by now, yet	lejos/away	jamás/never
Quantity	Affirmation	ni/neither
algo/some, not much	así/thus	no/no
apenas/barely, hardly, only just, scarcely	certamente/certainly, sure	nunca/never
bastante/enough	sí/yes	tampoco/also not, neither
casi/almost	tambien/also	Inclusion
cuanto (cuan)/as much (many)	verdaderamente/really, actually	además/moreover
demasiado/too, much	Exclusion	aún/still, yet
harto/enough, sufficiently	apenas/barely, hardly, (only) just	demás/moreover
más/more	salvo/but, except, save	hasta/even, till, until
menos/less	sino/but	mismo/even
mucho/a lot of, much, very	solo/only	tambien/also, too
poco/little	tampoco/also not	Interrogation
tanto (tan)/that much	Designation	¿adónde?/to where?
Doubt	he/behold! see! there! here!	¿dónde?/where?
acaso/maybe, perhaps, possibly	Order	¿cómo?/how?
por lo visto/apparently, seemingly	después/after	¿cuándo?/when?
quizás (quizá)/maybe, perhaps, possibly		¿cuánto?/how much (many)
talvez/maybe, perhaps, possibly		¿porque?/why?

Adverbs are formed by adding -mente to the feminine singular form of an adjective.

rápido/rapid
rápidamente/rapidly

agradable/pleasant
agradablemente/pleasantly

fácil/easy
fácilmente/easily

These adverbs correspond to the English adverbs formed by -ly.

Remember that only masculine singular adjectives ending in o have a different form for the feminine singular.

Común: común-mente
Alto: altamente

The superlative degree of these adverbs coincide with the superlative degree of the corresponding adjectives in their masculine form:
bueno: buenísimo
mucho: muchísimo
poco: poquísimo.

In Spanish, adverbs are compared in much the same manner as adjectives. Más or menos is placed before the adverb to form the comparative degree. The superlative is normally not distinguished from the comparative.

despacio/slow
más despacio/slower, slowest

María anda despacio./Mary walks slowly.
María anda más despacio que Elena./Mary walks slower than Helen.
De todas sus hermanas María anda más despacio./Of all her sisters Mary walks slowest.

There are four irregular comparative adverbs: