Comparative
Traveling by motorcycle isn't as healthy as biking.
...is less healthy than biking.
...is as healthy as walking. 


Comparatives
add "er"
3 syllables or more add "more + adj. + than" (no "er")
(positive sentence) = as (adj.) as
(negative sentence) = not as (adj.) as
Adjective (engaging) 
...less difficult than...


Doing ones laundry is an important part of...
Taking care of ones children is...
Repairing ones car is a challenging but fun...


Is everything okay?
gas station = oil bank (Konglish)
oil which burns to power your car, rather gasoline serves this function.
Oil is a lubricant.


I'm going to be late because I'm stuck in a traffic jam.
...heavy traffic.