あまり and ぜんぜん cannot stand with a positive verb: あまり食べません, “I don’t eat (it) much”.
Short answer: Japanese adverbs usually come before the verb or adjective they describe: とても高い (very expensive), よく食べる (eat a lot). Two things to know: some adverbs, like あまり and ぜんぜん, only work with a negative verb, and adjectives turn into adverbs with a simple ending change: 早い → 早く, 静か → 静かに.
How much: degree adverbs
These strengthen or soften an adjective or verb. すごく is the casual, spoken favourite; とても is neutral.
How often
Frequency adverbs sit early in the sentence, usually after the topic.
いつもitsumoalways電車denshatrainでdeby行きますikimasugo
Itsumo densha de ikimasu.“I always go by train.”Why:いつも at the start; the verb, as always, at the end.
Osake wa amari nomimasen.“I don’t drink much.”Why:あまり + negative verb: “not much, not often”.
Adverbs that need a negative
Like English “at all” or “hardly”, these only make sense with a negative verb or adjective. ぜんぜん with a positive is heard in casual speech (“totally fine”), but learn the negative use first.
もう and まだ: already and still
もう means “already” with a positive verb and “not any more” with a negative. まだ means “still” with a positive and “not yet” with a negative. The answer “not yet” is まだです.
もう + positive: already
もう + negative: not any more
まだ + positive: still
まだ + negative: not yet
Adverbs from adjectives
い-adjectives change い to く; な-adjectives add に. The result describes how something is done.
Adverb
Meaning
From
hayaku
early, quickly
早い (early)
yoku
well, often
いい (good)
ōkiku
in a big way
大きい (big)
shizuka ni
quietly
静か (quiet)
kirei ni
neatly, cleanly
きれい (clean)
jōzu ni
skilfully
上手 (skilful)
Time adverbs
Words for “soon”, “now” and “first” work like adverbs and usually need no particle.
How sure: adverbs of certainty
These set how confident the sentence is. Several pair with a particular ending.
Adverb
Meaning
Usually ends with
kitto
surely
〜でしょう, 〜と思う
tabun
probably
〜でしょう
moshika shitara
possibly
〜かもしれない
kanarazu
without fail
(positive verbs)
zettai ni
absolutely
positive or negative
masaka
surely not
〜ないでしょう
Where adverbs go
An adverb normally sits just before the verb or adjective it describes. Time and frequency adverbs can also open the sentence.
Kono rāmen wa totemo oishii desu.“This ramen is really good.”Why:とても right before the adjective it strengthens.
すぐsuguright away行きますikimasugo
Sugu ikimasu.“I’ll be right there.”Why:Present tense + すぐ: a promise about the near future.
もう少しmō sukoshia little moreゆっくりyukkurislowly話してくださいhanashite kudasaiplease speak
Mō sukoshi yukkuri hanashite kudasai.“Could you speak a bit more slowly, please?”Why:The most useful sentence for a learner. ゆっくり is an adverb on its own.