Adverbs

たいてい   mostly, usually. - degree
もう     already, shortly. - time
まだ     still, as yet - time   
すぐ     immediately
さっき    a short while ago  
もっと    more - degree
ずいぶん   extremely, surprisingly
きっと    surely
そろそろ   slowly, steadily, soon
だんだん   gradually
ずっと    continuously in a state (for a long time)
ほかに    in addition
いつも    always
よく     well
はっきり   clearly
たしかに   certainly
あまり    (not) much
ときどき   sometimes
たいへん   terribly

Time

      いつも    always
常に    つねに    always - written
絶えず   たえず    constantly
      しきりに   strongly, constantly, eagerly
度々    たびたび   often - casual
      しばしば   often - repetition of action
時々    ときどき   sometimes
      たまに    occasionally, infrequently
      しばらく   for a while (long or short)
終始    しゅうし   throughout - unchanging
      ずっと    all the time
      すぐに    right away
早速    さっそく   immediately - formal
      ただちに   at once - urgent response
      たちまち   suddenly - not speakers volition

Quantity

Degree

Circumstance

Onomatopoeia

Used with Negatives

Different Positive and Negative

Conditional

Desire, Conjecture, Resemblance