しばしば

often; again and again; frequently; repeatedly

だんだん

gradually; by degrees

まっすぐ

straight ahead; direct

たいてい

mostly; usually; generally; ordinarily

きっと

surely; undoubtly; most likely

しばらく

little while; short while; moment; instant

しっかり

tightly; firmly; securely

とうとう

finally; at last

それほど

to that degree; extent

たまに

occasionally; once in a while

なるほど

I see; that's right

ちっとも

not at all (neg. verb)

なるべく

as much as possible

さらに

further more; again; after all; moreover

すでに

already; too late

いっそう

much more; all the more; more than ever

ぜひ

certainly; without fail

おそらく

perhaps; likely; probably; I dare say

ともに

together; jointly

たびたび

often; again and again; repeatedly; frequently

すべて

everything; all; the whole

まったく

really; truly; entirely; completely

ついに

finally; at last

まず

first of all; to start with 

まるで

quite; entirely; completely; as if; as though

どうしても

at all costs; by all means; no matter what

ますます

increasingly; more and more; decreasingly (when declineing)

なかなか

very; considerably

わずか

only; merely

まさに

exactly; surely; certainly

もちろん

of course; certainly; naturally

ずいぶん

very; extremely

たまたま

casually; unexpectedly; accidently; by chance

つまり

that is to say; in other words; in short; in brief; in the end

いらいら

getting nervous; irritation

せいぜい

at the most; at best

あいにく

unfortunately; sorry but...