Index: gc_core/js/lang_core/gc_functions.js
==================================================================
--- gc_core/js/lang_core/gc_functions.js
+++ gc_core/js/lang_core/gc_functions.js
@@ -233,11 +233,11 @@
     }
     // search sPattern
     return lMorph.some(sMorph  =>  (sMorph.search(sPattern) !== -1));
 }
 
-function g_morphx (oToken, sPattern, sNegPattern="", nLeft=null, nRight=null) {
+function g_morphx (oToken, sPattern, sNegPattern="") {
     // analyse a multi-token, return True if <sNegPattern> not in morphologies and <sPattern> in morphologies
     if (!oToken.hasOwnProperty("oMultiToken")) {
         return false;
     }
     let lMorph = oToken["oMultiToken"]["lMorph"];

Index: gc_core/py/lang_core/gc_engine.py
==================================================================
--- gc_core/py/lang_core/gc_engine.py
+++ gc_core/py/lang_core/gc_engine.py
@@ -706,11 +706,13 @@
                                 }
                                 self.lTokens[nTokenStart]["nMultiStartTo"] = nTokenEnd
                                 self.lTokens[nTokenEnd]["nMultiEndFrom"] = nTokenStart
                                 self.lTokens[nTokenStart]["dMultiToken"] = dMultiToken
                                 self.lTokens[nTokenEnd]["dMultiToken"] = dMultiToken
-                                print(dMultiToken)
+                                if bDebug:
+                                    echo("    MULTI-TOKEN: ({})  [{}:{}]".format(sAction, self.lTokens[nTokenOffset+1]["sValue"], self.lTokens[nLastToken]["sValue"]))
+                                #print(dMultiToken)
                             else:
                                 echo("# error: unknown action at " + sLineId)
                         elif cActionType == ">":
                             if bDebug:
                                 echo("    COND_BREAK")

Index: gc_core/py/lang_core/gc_functions.py
==================================================================
--- gc_core/py/lang_core/gc_functions.py
+++ gc_core/py/lang_core/gc_functions.py
@@ -211,11 +211,11 @@
     # search sPattern
     zPattern = re.compile(sPattern)
     return any(zPattern.search(sMorph)  for sMorph in lMorph)
 
 
-def g_morphx (dToken, sPattern, sNegPattern):
+def g_morphx (dToken, sPattern, sNegPattern=""):
     "analyse a multi-token, return True if <sNegPattern> not in morphologies and <sPattern> in morphologies"
     if not "dMultiToken" in dToken:
         return False
     lMorph = dToken["dMultiToken"]["lMorph"]
     if not lMorph: