difficult to ...;  hard to ...
 anyhow;  in any case;  at any rate;  at best;  at most
 thorough;  exhaustive;  complete
 to make war (on);  to wage war (against);  to compete (against);  to struggle (against adversities, etc.);  to fight
 to believe;  to believe in;  to place trust in;  to confide in;  to have faith in
 good;  advantage;  sake;  purpose;  consequence;  result
 direction;  way;  side (of an argument, etc.);  one's part;  type;  category;  field (of study, etc.)
 eighteenth day of the month;  eighteen days
 six o'clock;  six periods of a day (morning, midday, afternoon, evening, midnight, late night)
 half;  semi-;  half-past;  odd number; (arch.)  unit of land area (595.8 m^2)
 rising (from one's bed);  getting up;  getting out of bed
 desktop;  desk-top;  tabletop;  after-dinner speech
 next;  following;  subsequent;  stage;  station
 dot;  spot;  mark (in an exam, etc.);  grade;  point (in a game);  score;  point (in geometry)
 now;  the present time;  just now;  another;  more
 opportunity;  chance;  time;  occasion
 any kind of;  every;  whatsoever;  whatever
 withdrawal;  retraction;  revocation;  repeal
 correction;  revision;  amendment
 intention;  plan;  belief;  assumption;  estimate;  estimation
 again;  once more;  also;  too;  on the other hand;  while;  and
 to the end;  to the bitter end;  to the last;  after all;  it must be remembered;  only
 political measures;  policy
 declaration;  statement;  proclamation
 to take out;  to get out;  to put out;  to reveal;  to submit (e.g. thesis);  to turn in;  to publish
 good;  excellent;  sufficient;  enough;  profitable (deal, business offer, etc.);  beneficial
 method;  process;  manner;  way;  means;  technique
 to be inclined to do;  to be willing to do
 to refuse;  to reject;  to inform;  to give notice;  to ask leave;  to excuse oneself (from)
 to put;  to place;  to leave (behind);  to establish (an organization, a facility, a position, etc.);  to set up;  to appoint (someone to a certain position);  to hire
 support;  backing;  aid;  assistance
 figure;  form;  appearance;  dress;  state;  condition