ability
accept
achieve
action
active
actually
address
admit
affect
afford
agree
allow
appear
apply
area
arrive
attention
available
avoid
believe
consider
continue
decide
develop
different
difficult
discover
education
effort
experience
explain
future
important
include
increase
interest
language
matter
necessary
possible
practice
probably
provide
receive
remember
require
several
special
suggest
support
understand
