diff --git a/lib/src/turkish/CatTur.gf b/lib/src/turkish/CatTur.gf
index da9dc63de..a80fa7911 100644
--- a/lib/src/turkish/CatTur.gf
+++ b/lib/src/turkish/CatTur.gf
@@ -16,21 +16,21 @@ concrete CatTur of Cat = CommonX ** open ResTur, Prelude in {
     Card = {s : Number => Case => Str} ;
     Ord  = {s : Number => Case => Str} ;
     Quant = {s : Str} ;
-    Prep = {s : Str} ;
+    Prep = Compl ;
 
     Numeral = {s : CardOrd => Number => Case => Str ; n : Number} ;
     Digits  = {s : CardOrd => Number => Case => Str ; n : Number; tail : DTail} ;
 
 -- Open lexical classes, e.g. Lexicon
     V, VS, VQ, VA = Verb ;
-    V2, V2Q, V2V, V2A, V2S = Verb ** {c : Case; p : Prep} ;
-    V3 = Verb ** {c1 : Case; p1 : Prep; c2 : Case; p2 : Prep} ;
+    V2, V2Q, V2V, V2A, V2S = Verb ** {c : Compl} ;
+    V3 = Verb ** {c1,c2 : Compl} ;
 
     A = Adjective ;
-    A2 = Adjective ** {c : Case; p : Prep} ;
+    A2 = Adjective ** {c : Compl} ;
 
     N  = Noun ;
-    N2 = Noun ** {c : Case} ;
-    N3 = Noun ** {c1 : Case; c2 : Case} ;
+    N2 = Noun ** {c : Compl} ;
+    N3 = Noun ** {c1,c2 : Compl} ;
     PN = Noun ;
-}
\ No newline at end of file
+}
diff --git a/lib/src/turkish/IrregTur.gf b/lib/src/turkish/IrregTur.gf
index d7aa94692..12083e54f 100644
--- a/lib/src/turkish/IrregTur.gf
+++ b/lib/src/turkish/IrregTur.gf
@@ -27,5 +27,5 @@ concrete IrregTur of IrregTurAbs = CatTur ** open ParadigmsTur, ResTur in {
     ol_Aux        : Verb = mkV "olmak" SgSylConIrreg ;
     koy_Aux       : Verb = mkV "koymak" ;
     gec_Aux       : Verb = mkV "geçmek" ;
-    against_Prep  : Prep = mkPrep "karşı" ;
+    against_Prep  : Prep = mkPrep "karşı" Dat;
 }
diff --git a/lib/src/turkish/LexiconTur.gf b/lib/src/turkish/LexiconTur.gf
index fdb004170..1b916430b 100644
--- a/lib/src/turkish/LexiconTur.gf
+++ b/lib/src/turkish/LexiconTur.gf
@@ -269,8 +269,8 @@ concrete LexiconTur of Lexicon = CatTur **
     eat_V2 = mkV2 (mkV "yemek" "yemek" "yimek") ;
     fall_V = mkV "düşmek" ;
     fear_VS = mkV "korkmak" ;
-    fear_V2 = mkV2 IrregTur.fear_V Ablat;
-    fight_V2 = mkV2 (mkV "dövüşmek") Dat against_Prep;
+    fear_V2 = mkV2 IrregTur.fear_V ablat_Case;
+    fight_V2 = mkV2 (mkV "dövüşmek") against_Prep;
     find_V2 = mkV2 (mkV "bulmak" SgSylConIrreg) ;
     float_V = mkV "yüzmek" ;
     flow_V = mkV "akmak" ;
@@ -279,9 +279,9 @@ concrete LexiconTur of Lexicon = CatTur **
     freeze_V = mkV "donmak" ;
     give_V3 = mkV3 (mkV "vermek" SgSylConIrreg) ;
     go_V = mkV "gitmek" "gidmek" ;
-    hate_V2 = mkV2 IrregTur.hate_V Ablat;
+    hate_V2 = mkV2 IrregTur.hate_V ablat_Case;
     hear_V2 = mkV2 (mkV "duymak") ;
-    hit_V2 = mkV2 IrregTur.hit_V Dat;
+    hit_V2 = mkV2 IrregTur.hit_V dat_Case;
     hold_V2 = mkV2 (mkV "tutmak") ;
     hope_VS = mkV "ummak" ;
     hunt_V2 = mkV2 (mkV "avlamak") ;
@@ -291,9 +291,9 @@ concrete LexiconTur of Lexicon = CatTur **
     know_VS = mkV "bilmek" ;
     laugh_V = mkV "gülmek" ;
     learn_V2 = mkV2 (mkV "öğrenmek") ;
-    leave_V2 = mkV2 IrregTur.leave_V Ablat;
+    leave_V2 = mkV2 IrregTur.leave_V ablat_Case;
     lie_V = mkV "yalan" soyle_Aux ;
-    like_V2 = mkV2 IrregTur.like_V Ablat;
+    like_V2 = mkV2 IrregTur.like_V ablat_Case;
     listen_V2 = mkV2 (mkV "dinlemek") ;
     live_V = mkV "yaşamak" ;
     lose_V2 = mkV2 (mkV "yitirmek") ;
@@ -332,7 +332,7 @@ concrete LexiconTur of Lexicon = CatTur **
     swim_V = mkV "yüzmek" ;
     switch8off_V2 = mkV2 (mkV "kapatmak") ;
     switch8on_V2 = mkV2 (mkV "açmak") ;
-    talk_V3 = mkV3 (mkV "konuşmak") Acc no_Prep Acc with_Prep  ;
+    talk_V3 = mkV3 (mkV "konuşmak") acc_Case with_Prep ;
     teach_V2 = mkV2 (mkV "öğretmek") ;
     think_V = mkV "düşünmek" ;
     throw_V2 = mkV2 (mkV "atmak") ;
diff --git a/lib/src/turkish/ParadigmsTur.gf b/lib/src/turkish/ParadigmsTur.gf
index 7ab2a0b31..046f8efe4 100644
--- a/lib/src/turkish/ParadigmsTur.gf
+++ b/lib/src/turkish/ParadigmsTur.gf
@@ -36,18 +36,16 @@ oper
 
   mkV2 : overload {
     -- make V2, use default case and preposition which are accusative case and no preposition
-    mkV2 : (sormak : Verb) -> Verb ** {c : Case; p : Prep} ;
+    mkV2 : (sormak : Verb) -> Verb ** {c : Compl} ;
     -- make V2, set case explicitly
-    mkV2 : (korkmak : Verb) -> (dat : Case) -> Verb ** {c : Case; p : Prep} ;
-    -- make V2, set case and preposition explicitly
-    mkV2 : (dovusmek : Verb) -> (dat : Case) -> (against : Prep) -> Verb ** {c : Case; p : Prep} ;
+    mkV2 : (korkmak : Verb) -> Compl -> Verb ** {c : Compl} ;
   } ;
 
   mkV3 : overload {
     -- make V3, use default cases and prepositions which are accusative and dative cases and no preposition.
-    mkV3 : (satmak : Verb) -> Verb ** {c1 : Case; p1 : Prep; c2 : Case; p2 : Prep} ;
+    mkV3 : (satmak : Verb) -> Verb ** {c1,c2 : Compl} ;
     -- make V3, set cases and prepositions explicitly.
-    mkV3 : (konusmak : Verb) -> Case -> Prep -> Case -> Prep -> Verb ** {c1 : Case; p1 : Prep; c2 : Case; p2 : Prep} ;
+    mkV3 : (konusmak : Verb) -> Compl -> Compl -> Verb ** {c1,c2 : Compl} ;
   } ;
 
 
@@ -71,20 +69,18 @@ oper
 
   mkV2 = overload {
     -- sormak
-    mkV2 : Verb -> Verb ** {c : Case; p : Prep} = \verb -> verb ** {c = Acc; p = no_Prep} ;
+    mkV2 : Verb -> Verb ** {c : Compl} = \verb -> verb ** {c = no_Prep} ;
     -- (bir şeyden) korkmak
-    mkV2 : Verb -> Case -> Verb ** {c : Case; p : Prep} = \verb,ca -> verb ** {c = ca; p = no_Prep} ;
-    -- (bir şeye karşı) dövüşmek
-    mkV2 : Verb -> Case -> Prep -> Verb ** {c : Case; p : Prep} = \verb,ca,prep -> verb ** {c = ca; p = prep} ;
+    mkV2 : Verb -> Compl -> Verb ** {c : Compl} = \verb,c -> verb ** {c = c} ;
   } ;
 
   
   mkV3 = overload {
     -- (birine bir şeyi) satmak
-    mkV3 : Verb -> Verb ** {c1 : Case; p1 : Prep; c2 : Case; p2 : Prep} = \verb -> verb ** {c1 = Acc; p1 = no_Prep; c2 = Dat; p2 = no_Prep} ;
+    mkV3 : Verb -> Verb ** {c1,c2 : Compl} = \verb -> verb ** {c1 = no_Prep; c2 = no_Prep} ;
     -- (biri ile bir şeyi) konuşmak
-    mkV3 : Verb -> Case -> Prep -> Case -> Prep -> Verb ** {c1 : Case; p1 : Prep; c2 : Case; p2 : Prep} = 
-      \verb,c1,p1,c2,p2 -> verb ** {c1 = c1; p1 = p1; c2 = c2; p2 = p2} ;
+    mkV3 : Verb -> Compl -> Compl -> Verb ** {c1 : Compl; c2 : Compl} = 
+      \verb,c1,c2 -> verb ** {c1 = c1; c2 = c2} ;
   } ;
 
 -- Paradigms for noun
@@ -106,9 +102,9 @@ oper
     mkN : (zeytin, yag : Noun) -> Noun ;
   } ;
   
-  mkN2 : Str -> Noun ** {c : Case} ;
+  mkN2 : Str -> Noun ** {c : Compl} ;
 
-  mkN3 : Str -> Noun ** {c1 : Case; c2 : Case} ;
+  mkN3 : Str -> Noun ** {c1,c2 : Compl} ;
 
   -- worst case function
   -- parameters: all singular cases of base, base of genitive table, plural form of base and harmony of base
@@ -142,12 +138,10 @@ oper
 
   mkA2 : overload {
     -- (biri) ile evli
-    mkA2 : Adjective -> Case -> Prep -> Adjective ** {c : Case; p : Prep} ;
-    -- makes default case accusative
-    mkA2 : Adjective -> Prep -> Adjective ** {c : Case; p : Prep} ;
+    mkA2 : Adjective -> Compl -> Adjective ** {c : Compl};
   } ;
 
-  mkAdj2 : Adjective -> Case -> Prep -> Adjective ** {c : Case; p : Prep} ;
+  mkAdj2 : Adjective -> Compl -> Adjective ** {c : Compl} ;
 
 -- Paradigms for numerals
   mkNum : overload {
@@ -156,7 +150,7 @@ oper
     -- an irregular numeral of which two form is needed. e.g. "kırk" "kırkıncı" "kırk" "kırkıncı" (does not soften)
     mkNum : Str -> Str -> Str -> Str -> {s : DForm => CardOrd => Number => Case => Str} ;
   } ;
-  
+
   regNum : Str -> Str -> {s : DForm => CardOrd => Number => Case => Str} ;
   makeNum : Str -> Str -> Str -> Str -> {s : DForm => CardOrd => Number => Case => Str} ;
 
@@ -393,13 +387,10 @@ oper
     mkN : (zeytin, yag : Noun) -> Noun = \n1,n2 -> linkNoun n1 n2 Indef Con ;
   } ;
 
-  
-  mkN2 base = let noun = mkN base in noun ** {c = Gen} ;
+  mkN2 base = mkN base ** {c = {s=[]; c=Gen}} ;
 
-  
-  mkN3 base = let noun = mkN base in noun ** {c1 = Gen; c2 = Dat} ;
+  mkN3 base = mkN base ** {c1,c2 = {s=[]; c=Gen}} ;
 
-  
 -- Implementation of adjactive paradigms
   mkA = overload {
     -- güzel
@@ -414,12 +405,11 @@ oper
 
 
   mkA2 = overload {
-    mkA2 : Adjective -> Case -> Prep -> Adjective ** {c : Case; p : Prep} = mkAdj2 ;
-    mkA2 : Adjective -> Prep -> Adjective ** {c : Case; p : Prep} = \n,p -> mkAdj2 n Acc p ;
+    mkA2 : Adjective -> Compl -> Adjective ** {c : Compl} = mkAdj2 ;
   } ;
 
-  mkAdj2 base c prep = base ** {c = c; p = prep} ;
-  
+  mkAdj2 base c = base ** {c = c} ;
+
 -- Implementation of numeral paradigms
   mkNum = overload {
     mkNum : Str -> Str -> {s : DForm => CardOrd => Number => Case => Str} = regNum ;
@@ -516,6 +506,10 @@ oper
         Pl => addSuffix base (mkHar harVow SVow) plSuffix
       } ;
 
+  ablat_Case = mkPrep [] Ablat;
+  dat_Case   = mkPrep [] Dat;
+  acc_Case   = mkPrep [] Dat;
+
 param
   AoristType = PlSyl         -- more than one syllable, takes -ir
 	    | SgSylConIrreg -- one syllable ending with consonant, but takes -ir (here is the list: al-, bil-, bul-, dur-, gel-, gör-, kal-, ol-, öl-, var-, ver-, vur-, san- )
diff --git a/lib/src/turkish/ResTur.gf b/lib/src/turkish/ResTur.gf
index 8620fc657..1f866c26c 100644
--- a/lib/src/turkish/ResTur.gf
+++ b/lib/src/turkish/ResTur.gf
@@ -14,6 +14,7 @@ resource ResTur = ParamX ** open Prelude, Predef, HarmonyTur in {
 
   oper
     Agr = {n : Number ; p : Person} ;
+    Compl = {s : Str; c : Case} ;
     Noun = {s : Number => Case => Str; gen : Number => Agr => Str; harmony : Harmony} ;
     Pron = {s : Case => Str; a : Agr} ;
 
@@ -65,6 +66,6 @@ resource ResTur = ParamX ** open Prelude, Predef, HarmonyTur in {
 
 --Prep
 
-    no_Prep = mkPrep [] ;
-    mkPrep : Str -> {s : Str} = \str -> ss str ;
-}
\ No newline at end of file
+    no_Prep = mkPrep [] Acc;
+    mkPrep : Str -> Case -> {s : Str; c : Case} = \s,c -> {s=s; c=c};
+}
diff --git a/lib/src/turkish/StructuralTur.gf b/lib/src/turkish/StructuralTur.gf
index 61a02b21e..a7a8a8fd6 100644
--- a/lib/src/turkish/StructuralTur.gf
+++ b/lib/src/turkish/StructuralTur.gf
@@ -17,5 +17,5 @@ concrete StructuralTur of Structural = CatTur **
     youPl_Pron = mkPron "siz" "sizi" "size" "sizin" "sizde" "sizden" "sizli" "sizsiz" Pl P2 ;
     youPol_Pron = mkPron "siz" "sizi" "size" "sizin" "sizde" "sizden" "sizli" "sizsiz" Pl P2 ;
 
-    with_Prep = mkPrep "ile" ;
+    with_Prep = mkPrep "ile" Acc;
 }