difficult to ...;  hard to ...
 on the contrary;  rather;  all the more;  instead
 friendship;  friendly relations;  connection;  relation;  intimacy
 to tie;  to bind;  to bear (fruit);  to close (e.g. deal);  to confirm;  to connect (two distant places);  to close tightly
 may;  might;  perhaps;  may be;  possibly
 to become known;  to come to light;  to be known;  to be understood;  to clearly not amount to much;  to be insignificant
 useless;  vain;  aimless;  idle
 to leave;  to exit;  to leave (on a journey);  to depart;  to move forward;  to come to;  to get to
 to call out to;  to hail;  to address;  to appeal
 immediate;  prompt;  quick;  rapid;  urgent;  pressing
 examiner;  investigator;  inquisitor;  agent
 dispatch;  despatch;  deployment;  temporary employee (esp. from an agency);  temporary worker;  agency temp
 elucidation;  explication;  explaining;  unravelling;  clarification;  understanding
 to be hit;  to strike;  to touch;  to be in contact;  to be equivalent to;  to be applicable;  to be right on the money (of a prediction, criticism, etc.)
 obligation;  duty;  charge;  responsibility
 to go in the direction of;  to proceed toward;  to become;  to face (facts, circumstances, etc.); (arch.)  to abide by; (arch.)  to agree to
 something;  some;  somehow;  for some reason;  (is there) something (you want, etc.)
 question (e.g. on a test);  problem;  problem (e.g. societal, political);  question;  question (i.e. doubt);  public discussion
 crime;  sin;  penalty;  sentence;  fault;  responsibility
 existence or nonexistence;  presence or absence;  consent or refusal;  yes or no
 together with;  as X, then Y (e.g. as we age we gain wisdom, as wine matures it becomes more valuable, etc.)
 proxy;  agent;  substitute;  deputy;  alternate;  representative
 (those) who are;  (that) which is;  in the capacity of
 taking captive;  carrying away;  kidnapping;  kidnaping;  abduction
 escape;  flight;  running away;  elopement;  fleeing
 to punish;  to penalize;  to penalise
 to keep;  to preserve;  to hold;  to last;  to endure;  to keep well (food)
 dot;  spot;  mark (in an exam, etc.);  grade;  point (in a game);  score;  point (in geometry)
 to think of;  to give one's thought to
 wanted;  wished for;  in need of;  I want (you) to
 painful;  being sorry;  feeling sorry
 rash;  thoughtless;  imprudent;  careless;  frivolous
 confidence;  trust;  faith;  credit (finance)
 innocence;  guiltlessness;  absence of the fact;  insubstantiality; (arch.)  insincerity; (arch.)  dishonesty
 oneself;  oneself;  for oneself;  personally
 place;  spot;  address;  district;  area;  one's house;  point
 road;  path;  route;  way;  distance;  journey;  road (e.g. to victory)
 to make clear;  to clarify;  to disclose;  to make public
 fault;  error;  going poorly;  being disadvantageous;  un-;  non-
 to correct;  to rectify;  to reform;  to straighten (one's posture, collar, etc.);  to adjust