diff --git a/lib/src/japanese/ExtraJapAbs.gf b/lib/src/japanese/ExtraJapAbs.gf
new file mode 100644
index 000000000..813062556
--- /dev/null
+++ b/lib/src/japanese/ExtraJapAbs.gf
@@ -0,0 +1,14 @@
+abstract ExtraJapAbs = Cat ** {
+  cat
+    Level ;  -- style of speech
+    Part ;   -- particles wa/ga
+
+  fun
+    Honorific : Level ;
+    Informal  : Level ;
+    
+    PartWA : Part ;
+    PartGA : Part ;
+
+    StylePartPhr : Level -> Part -> PConj -> Utt -> Voc -> Phr ;
+  } ;