Useful Japanese Adverbs

always
itsumo
いつも

usually
taitei
たいてい

often
yoku
よく

sometimes
tokidoki
時々

seldom
mettani (+ negative verb)
めったに

never, by no means
zenzen
全然

quite, entirely
mattaku
まったく

certainly, by all means
kanarazu
必ず

absolutely
zettaini
絶対に

perhaps, probably
tabun
多分

indeed, really
hontouni
本当に

completely
sukkari
すっかり

surely, certainly
kitto
きっと

especially
tokuni
特に

extremely, very
totemo
とても

fairly, considerably
kanari
かなり

slightly, a bit​
chotto
ちょっと

about, approximately
yaku

forever
itsumademo
いつまでも

all the time, by far
zutto
ずっと

once, before
katsute
かつて

not yet, still
mada
まだ

soon
sugu
すぐ

for a while
shibaraku
しばらく

for the time being
ichiou
いちおう

anyway, at any rate
tonikaku
とにかく

now, well, incidentally
tokorode
ところで

at first​
mazu
まず

next, then
tsugini
次に

finally
saigoni
最後に

again, also
mata
また

suddenly
kyuuni
急に

by chance
guuzenni
偶然に

just, precisely
choudo
ちょうど

already
mou
もう

more
motto
もっと

most​
mottomo
最も

fast
hayaku
早く

slowly
yukkuri
ゆっくり

increasingly
masumasu
ますます

gradually
dandan
だんだん

at last
yatto
やっと

together
isshoni
一緒に

separately
betsubetsuni
別に

instead
kawarini
代わりに

quietly
jitto
じっと

secretly
sotto
そっと

on purpose
wazato
わざと

despite one's efforts
sekkaku
せっかく

if possible
narubeku
なるべく