diff --git a/lib/src/chunk/ChunkJpn.gf b/lib/src/chunk/ChunkJpn.gf
new file mode 100644
index 000000000..51a989700
--- /dev/null
+++ b/lib/src/chunk/ChunkJpn.gf
@@ -0,0 +1,59 @@
+concrete ChunkJpn of Chunk = {} ;
+
+{-
+
+---- TODO: everything. Since CatJpn.Utt is not {s : Str}, nothing works in the functor
+
+CatJpn, ExtensionsJpn [VPS,VPI] ** 
+  ChunkFunctor
+     with (Syntax = SyntaxJpn), (Extensions = ExtensionsJpn) **
+  open 
+    SyntaxJpn, (E = ExtensionsJpn), Prelude, 
+    ResJpn, (P = ParadigmsJpn) in {
+
+oper
+  emptyNP : NP = mkNP [] ;
+
+-- exceptions to functor
+
+lin
+  Conj_Chunk conj = ss (conj.s ! CSent).s2 ;
+  Numeral_Nom_Chunk num = ss (num.s ++ ge_s) ;
+  CN_Pl_Chunk cn = cn ;
+  Subj_Chunk subj = ss (subj.prePart ++ subj.sufPart) ;
+  Prep_Chunk prep = ss (prep.prepPre ++ prep.prepPost) ;
+  Predet_Chunk predet = predet ;
+
+
+
+lin
+  NP_Acc_Chunk np = np ;
+  NP_Gen_Chunk np = ss (np.s ++ de_s) ;
+
+  VPI_Chunk vpi = vpi ;
+
+  copula_inf_Chunk = ss copula_s ;
+
+  refl_SgP1_Chunk = ss reflPron ;
+  refl_SgP2_Chunk = ss reflPron ;
+  refl_SgP3_Chunk = ss reflPron ;
+  refl_PlP1_Chunk = ss reflPron ;
+  refl_PlP2_Chunk = ss reflPron ;
+  refl_PlP3_Chunk = ss reflPron ;
+  neg_Chunk = ss neg_s ;
+  copula_Chunk = ss copula_s ;
+  copula_neg_Chunk = ss (neg_s ++ copula_s) ;
+  past_copula_Chunk = ss "了" ;
+  past_copula_neg_Chunk = ss (neg_s ++ copula_s ++ "了") ;
+  future_Chunk = ss copula_s ; ----
+  future_neg_Chunk = ss (neg_s ++ copula_s) ;
+  cond_Chunk = ss copula_s ; ----
+  cond_neg_Chunk = ss (neg_s ++ copula_s) ;
+  perfect_Chunk = ss "了" ;
+  perfect_neg_Chunk = ss (neg_s ++ copula_s ++ "了") ;
+  past_perfect_Chunk = ss "了" ;
+  past_perfect_neg_Chunk = ss (neg_s ++ copula_s ++ "了") ;
+
+}
+
+-}
diff --git a/lib/src/translator/ExtensionsJpn.gf b/lib/src/translator/ExtensionsJpn.gf
new file mode 100644
index 000000000..0c89fa93d
--- /dev/null
+++ b/lib/src/translator/ExtensionsJpn.gf
@@ -0,0 +1,140 @@
+--# -path=.:../abstract
+
+concrete ExtensionsJpn of Extensions = 
+  CatJpn ** open ResJpn, ParadigmsJpn, SyntaxJpn, (G = GrammarJpn), (E = ExtraJpn), Prelude in {
+
+{-
+---- TODO: everything. But consult TranslateJpn.gf to see what is not needed
+
+lincat
+  VPI = E.VPI ;
+  VPS = E.VPS ;
+
+ListVPI = E.ListVPI ;
+
+  ListVPS = E.ListVPS ;
+  
+lin
+  MkVPI = E.MkVPI ;
+  ConjVPI = E.ConjVPI ;
+----  ComplVPIVV = E.ComplVPIVV ;
+
+  MkVPS = E.MkVPS ;
+  ConjVPS = E.ConjVPS ;
+  PredVPS = E.PredVPS ;
+
+  BaseVPI = E.BaseVPI ;
+  ConsVPI = E.ConsVPI ;
+  BaseVPS = E.BaseVPS ;
+  ConsVPS = E.ConsVPS ;
+
+  GenNP = E.GenNP ;
+----  GenIP = E.GenIP ;
+  GenRP = E.GenRP ;
+
+  PassVPSlash = E.PassVPSlash ;
+  PassAgentVPSlash = E.PassAgentVPSlash ;
+
+----  EmptyRelSlash = E.EmptyRelSlash ;
+
+lin
+  that_RP = which_RP ;
+
+-- lexical entries
+
+--  another_Quant = mkQuantifier "otro" "otra" "otros" "otras" ;
+--  some_Quant = mkQuantifier "algún" "alguna" "algunos" "algunas" ;
+--  anySg_Det = mkDeterminer "algún" "alguna" Sg False ; ---- also meaning "whichever" ? 
+--  each_Det = SyntaxJpn.every_Det ;
+
+--  but_Subj = {s = "pero" ; m = Indic} ; ---- strange to have this as Subj
+
+  CompoundN noun cn  = {s = noun.s ++ cn.s ; c = cn.c} ; ----
+  CompoundAP noun adj = complexAP (noun.s ++ possessive_s ++ adj.s) ; ----
+
+  GerundN v = {
+    s = v.s ;
+    c = ge_s ---- ge
+  } ;
+
+  GerundNP vp = {
+    s = infVP vp ; ---- ?
+  } ;
+
+  GerundAdv vp = {
+    s = infVP vp ++ "地" ; ---- ?
+    advType = ATManner ;
+  } ;
+  
+  PastPartAP v = {
+    s = v.verb.s ++ de_s ; ----
+    monoSyl = False ;
+    hasAdA = True ; --- 
+  } ;
+
+
+----  PastPartAP v = v ; ----
+
+
+  OrdCompar a = {s = \\c => a.s ! AAdj Compar c } ;
+
+
+  PositAdVAdj a = {s = a.s} ;
+
+
+  UseQuantPN q pn = {s = q.s ++ ge_s ++ pn.s} ; ---- ge
+
+  SlashV2V v a p vp = 
+    insertObj (ResJpn.mkNP (a.s ++ p.s ++ useVerb vp.verb ! p.p ! APlain ++ vp.compl))   
+              (predV v v.part) ** {c2 = v.c2 ; isPre = v.hasPrep} ; ---- aspect
+
+
+  SlashVPIV2V v p vpi = insertObjc (\\a => p.s ++ 
+                                           v.c3 ++ 
+                                           vpi.s ! VVAux ! a)
+                                   (predVc v) ;
+
+
+---- TODO: find proper expressions for OSV and OVS in Jpn
+  PredVPosv np vp = G.PredVP np vp ; ---- (lin NP np) (lin VP vp) ; ----
+  PredVPovs np vp = G.PredVP np vp ; ----  (lin NP np) (lin VP vp) ; ----
+
+
+  CompS s = insertObj s (predV copula []) ; ----
+
+
+  CompQS qs = insertObj (ss (qs.s ! False)) (predV copula []) ; ----
+  CompVP ant p vp = insertObj (ss (infVP vp)) (predV copula []) ; ----
+
+
+  VPSlashVS vs vp = 
+    insertObj (\\a => infVP VVInf vp Simul CPos a) (predV vs []) **
+    {c2 = ""; gapInMiddle = False} ;
+
+
+
+  PastPartRS ant pol vp = { ---- copied from PresPartRS
+       s = ant.s ++ pol.s ++ vp.prePart ++ useVerb vp.verb ! pol.p ! APlain ++ vp.compl ++ which_RP.s  ---- aspect
+       } ; ---- ??
+
+
+  PresPartRS ant pol vp = { ---- copied from RelVP
+       s = ant.s ++ pol.s ++ vp.prePart ++ useVerb vp.verb ! pol.p ! APlain ++ vp.compl ++ which_RP.s  ---- aspect
+       } ; ---- ??
+
+    ComplVV v a p vp = {
+      verb = v ;
+      compl = a.s ++ p.s ++ vp.topic ++ vp.prePart ++ useVerb vp.verb ! p.p ! APlain ++ vp.compl ; ---- aspect
+      prePart, topic = []
+      } ;
+
+  ApposNP np1 np2 = {
+    s = np1.s ++ chcomma ++ np2.s
+  } ;
+  
+  AdAdV = cc2 ;
+  
+  UttAdV adv = adv;
+-}
+
+}
diff --git a/lib/src/translator/TranslateJpn.gf b/lib/src/translator/TranslateJpn.gf
new file mode 100644
index 000000000..714a4abe2
--- /dev/null
+++ b/lib/src/translator/TranslateJpn.gf
@@ -0,0 +1,48 @@
+--# -path=.:../chunk:alltenses
+
+concrete TranslateJpn of Translate = 
+  TenseJpn,
+  NounJpn - [PPartNP],
+  AdjectiveJpn,
+  NumeralJpn,
+  SymbolJpn [
+    PN, Symb, String, CN, Card, NP, MkSymb, SymbPN, CNNumNP
+    ],
+  ConjunctionJpn,
+
+  VerbJpn - [
+    UseCopula,  -- just removed
+    PassV2 -- generalized
+    ],
+  AdverbJpn,
+  PhraseJpn,
+  SentenceJpn,
+  QuestionJpn,
+  RelativeJpn,
+  IdiomJpn,
+----  ConstructionJpn, ---- TODO
+----  DocumentationJpn, ---- TODO
+
+  ChunkJpn,
+  ExtensionsJpn [
+    CompoundN,AdAdV,UttAdV,ApposNP,MkVPI, MkVPS, PredVPS, PassVPSlash, PassAgentVPSlash, CompoundAP
+    , DirectComplVS, DirectComplVQ, FocusObjS
+    , PastPartAP, PastPartAgentAP, PresPartAP, GerundNP, GerundAdv
+    , WithoutVP, InOrderToVP, ByVP
+    ],
+
+  DictionaryJpn ** 
+ 
+  open ResJpn, ParadigmsJpn, SyntaxJpn, Prelude, (G = GrammarJpn), (E = ExtraJpn) in {
+
+flags
+  literal = Symb ;
+  coding = utf8 ;
+
+---- TODO: everything
+
+-- Japanese-specific overrides (if any) here
+
+
+}
+