diff --git a/src/korean/AdjectiveKor.gf b/src/korean/AdjectiveKor.gf
index a59e74ea5..440a473b1 100644
--- a/src/korean/AdjectiveKor.gf
+++ b/src/korean/AdjectiveKor.gf
@@ -11,7 +11,7 @@ concrete AdjectiveKor of Adjective = CatKor ** open ResKor, Prelude in {
 
   -- : A  -> NP -> AP ;
   ComparA a np = a ** {
-    compar = np.s
+    compar = np.s ! Bare
     } ;
 
   -- : A2 -> NP -> AP ;  -- married to her
diff --git a/src/korean/AdverbKor.gf b/src/korean/AdverbKor.gf
index 24da40d26..d332f627a 100644
--- a/src/korean/AdverbKor.gf
+++ b/src/korean/AdverbKor.gf
@@ -1,6 +1,6 @@
 concrete AdverbKor of Adverb = CatKor ** open ResKor, ParamKor, ParadigmsKor, Prelude in {
 
---lin
+lin
 
   -- : A -> Adv ;
   --PositAdvAdj adj = { } ;
@@ -11,7 +11,7 @@ concrete AdverbKor of Adverb = CatKor ** open ResKor, ParamKor, ParadigmsKor, Pr
 --    ComparAdvAdjS : CAdv -> A -> S  -> Adv ; -- more warmly than he runs
 
   -- : Prep -> NP -> Adv ;
-  -- PrepNP =
+  PrepNP prep np = {s = glue (np.s ! Bare) prep.s} ;
 
 -- Adverbs can be modified by 'adadjectives', just like adjectives.
 
diff --git a/src/korean/LexiconKor.gf b/src/korean/LexiconKor.gf
index 15f6036a8..958640353 100644
--- a/src/korean/LexiconKor.gf
+++ b/src/korean/LexiconKor.gf
@@ -176,7 +176,7 @@ lin girl_N = mkN "여자아이" ;
 -- lin horn_N = mkN "" ;
 -- lin horse_N = mkN "" ;
 -- lin hot_A = mkA "" ;
-lin house_N = mkN "guri" ;
+lin house_N = mkN "집" ;
 -- lin hunt_V2 = mkV2 "" ;
 -- lin husband_N = mkN "" ;
 
diff --git a/src/korean/NounKor.gf b/src/korean/NounKor.gf
index 81af0cbfe..ab79d4f03 100644
--- a/src/korean/NounKor.gf
+++ b/src/korean/NounKor.gf
@@ -7,7 +7,7 @@ concrete NounKor of Noun = CatKor ** open ResKor, Prelude in {
 --2 Noun phrases
 
 -- : Det -> CN -> NP
-  DetCN det cn = {s = det.s ++ cn.s} ;
+  DetCN det cn = {s = \\c => det.s ++ cn.s ! c} ;
 
   -- : PN -> NP ;
 --  UsePN pn = pn ** {
diff --git a/src/korean/ParamKor.gf b/src/korean/ParamKor.gf
index 8931ca04f..38f081d4d 100644
--- a/src/korean/ParamKor.gf
+++ b/src/korean/ParamKor.gf
@@ -21,6 +21,7 @@ oper
   --   "p" => "b" ;
   --   _   => s } ;
 
+
 --------------------------------------------------------------------------------
 -- Morphophonology
 
@@ -31,11 +32,22 @@ oper
 
 param
   NForm =
-      Topic
-    | Subject
-    | Object ;
+      Bare     -- no case particle
+    | Topic    -- 은 or 는
+    | Subject  -- 이 or 가
+    | Object   -- 을 or 를
+    ;
 
+oper
 
+  allomorph : NForm -> Str -> Str = \nf,s ->
+    let endsInV : Bool = case s of {_ + #v => True ; _ => False} ;
+    in case nf of {
+         Topic   => if_then_Str endsInV "은" "는" ;
+         Subject => if_then_Str endsInV "이" "가" ;
+         Object  => if_then_Str endsInV "을" "를" ;
+         Bare    => []
+      } ;
 --------------------------------------------------------------------------------
 -- Numerals
 
@@ -56,7 +68,9 @@ oper
 -- Adjectives
 
 param
-  AForm = AdjPres | AdjPast ; -- TODO: proper thing
+  AForm =
+   AAttr |
+   APred VForm ;
 
 --------------------------------------------------------------------------------
 -- Prepositions
diff --git a/src/korean/ResKor.gf b/src/korean/ResKor.gf
index 3303301b2..a7fcf317d 100644
--- a/src/korean/ResKor.gf
+++ b/src/korean/ResKor.gf
@@ -5,7 +5,7 @@ resource ResKor = ParamKor ** open Prelude, Predef, ParamKor in {
 oper
 
   Noun : Type = {
-    s : Str
+    s : NForm => Str
     } ;
   Noun2 : Type = Noun ; -- TODO eventually more parameters?
   Noun3 : Type = Noun ;
@@ -15,7 +15,9 @@ oper
 
   PNoun : Type = Noun ;
 
-  mkNoun : Str -> Noun = \str -> ss str ;
+  mkNoun : Str -> Noun = \str -> {
+    s = \\cas => str + allomorph cas str
+    } ;
 
   useN : Noun -> CNoun = \n -> n ;
 
@@ -185,7 +187,7 @@ oper
   predVPslash = predVP ; -- VP==VPSlash,  Cl==ClSlash
 
   predVP : NounPhrase -> VerbPhrase -> ClSlash = \np,vp -> vp ** {
-    s = \\t,a,p => np.s
+    s = \\t,a,p => np.s ! Topic
                 ++ vp.aComp ++ vp.nComp -- TODO: embed copula into complement
                 ++ vp.s ! VFin Gnomic Pos -- TODO: actual forms
     } ;
diff --git a/src/korean/StructuralKor.gf b/src/korean/StructuralKor.gf
index 2f4593c86..8ae63daea 100644
--- a/src/korean/StructuralKor.gf
+++ b/src/korean/StructuralKor.gf
@@ -104,12 +104,12 @@ oper
 -- lin for_Prep = mkPrep ;
 -- lin from_Prep = mkPrep "" ;
 -- lin in8front_Prep = mkPrep "" ;
--- lin in_Prep = mkPrep "" ;
--- lin on_Prep = mkPrep "" ;
+lin in_Prep = mkPrep "에서" ;
+-- lin on_Prep = mkPrep "에서" ;
 -- lin part_Prep = mkPrep ;
--- lin possess_Prep = mkPrep ;
+lin possess_Prep = mkPrep "의" ;
 -- lin through_Prep = mkPrep ;
--- lin to_Prep = mkPrep ;
+lin to_Prep = mkPrep "에";
 -- lin under_Prep = mkPrep "" ;
 -- lin with_Prep = mkPrep "" ;
 -- lin without_Prep = mkPrep "" ;
diff --git a/src/korean/VerbKor.gf b/src/korean/VerbKor.gf
index 126a58294..2c419583c 100644
--- a/src/korean/VerbKor.gf
+++ b/src/korean/VerbKor.gf
@@ -119,12 +119,12 @@ lin
 
   -- : CN  -> Comp ;
   CompCN cn = emptyComp ** {
-    aComp = cn.s ; -- TODO: num. I am [a house that sleeps here] vs.  we are [houses that sleep here]
+    aComp = cn.s ! Bare ; -- TODO: num. I am [a house that sleeps here] vs.  we are [houses that sleep here]
     } ;
 
   --  NP  -> Comp ;
   CompNP np = emptyComp ** {
-    nComp = np.s ; -- ! Object ;
+    nComp = np.s ! Bare ;
     } ;
 
   -- : Adv  -> Comp ;