is that so? (generally rhetorical)
 indicates sentence subject (occasionally object);  indicates possessive (esp. in literary expressions);  but;  however;  regardless of;  whether (or not)
 to do;  to undertake;  to send;  to dispatch;  to put;  to move;  to give (esp. to someone of equal or lower status)
 endorsing and questioning the preceding statement;  lamenting reflections on the preceding statement
 to be blurred (due to motion; of a photo, video, etc.);  to be shaken (of a camera);  to waver (in one's beliefs, policy, etc.);  to shift (position);  to be slightly off
 good;  excellent;  sufficient;  enough;  profitable (deal, business offer, etc.);  beneficial
 indicates direct object of action;  indicates subject of causative expression;  indicates an area traversed;  indicates time (period) over which action takes place;  indicates point of departure or separation of action;  indicates object of desire, like, hate, etc.
 to lose (something);  to mislay;  to get rid of;  to eliminate;  to remove
 indicates a question;  or;  whether or not;  some- (e.g. something, someone);  hmm;  huh;  very
 Mr.;  Mrs.;  Miss;  politeness marker
 (some) more;  even more;  longer;  further
 skillful;  skilful;  delicious;  appetizing;  fortunate;  splendid
 remodeling;  remodelling;  restructuring;  modding
 to be (of animate objects);  to exist;  to stay;  to be ...-ing;  to have been ...-ing
 this sort of;  this kind of;  like this;  such
 tragedy;  tragic drama;  tragic play;  tragedy;  calamity;  disaster
 indicates sentence topic;  indicates contrast with another option (stated or unstated);  adds emphasis
 although;  despite;  whereas;  while;  if only;  I wish
 indicates word or phrase being defined;  used for quoting (thoughts, speech, etc.);  with;  (not) as much as;  (not) so much as;  the fact that
 indicates possessive;  nominalizes verbs and adjectives;  substitutes for "ga" in subordinate phrases;  (at sentence-end, falling tone) indicates a confident conclusion;  (at sentence-end) indicates emotional emphasis;  (at sentence-end, rising tone) indicates question
 thing;  matter;  incident;  occurrence;  circumstances;  situation;  work
 I wonder;  do you think?;  I might;  some kind;  some stage;  somehow
 Mr.;  Mrs.;  makes a word more polite (usu. in fixed expressions);  state;  situation
 to be sad;  to mourn for;  to regret
 necessary;  needed;  essential;  necessity;  need;  requirement
 et cetera;  etc.;  or something;  the likes of;  for example;  for instance
 indicates emotion or admiration;  indicates emphasis;  I;  me;  wah!;  boo!
 after all;  in the end;  anyway;  (cannot) possibly;  (not) at all;  (not) by any means
 promise;  agreement;  convention;  rule;  destiny;  fate
 also;  too;  not ... either;  (it's not possible) no matter what;  although one might wish otherwise
 to enter;  to go into;  to break into;  to join;  to enroll;  to contain;  to hold
 man;  male;  fellow;  guy;  male lover;  boyfriend
 where;  which;  anyway;  anyhow;  sooner or later;  eventually
 to be defeated;  to be beaten;  to be unsuccessful;  to lose
 that;  it;  then;  that point (in time); (arch.)  there; (arch.)  you
 only;  just;  merely;  as much as;  to the extent of;  enough to