diff --git a/tools/grammarcheckers/grammarchecker.cg3 b/tools/grammarcheckers/grammarchecker.cg3
index c7872a6d9..631069b37 100644
--- a/tools/grammarcheckers/grammarchecker.cg3
+++ b/tools/grammarcheckers/grammarchecker.cg3
@@ -2278,16 +2278,19 @@ COPY:xmsyn-moddii ("ohtii" Adv &SUGGEST) EXCEPT ("oovtâ" Num Sg Nom &msyn-moddi
 
 #!! ## Noun phrase internal phenomena
 
+ADD:xmsyn-jyehi_nom-jyehi_gen (&msyn-jyehi_nom-jyehi_gen) TARGET (N Sg Nom) + Sem/Time (NEGATE 0 Gen) (-1 ("jyehi" Attr));
+	## jyehi {peivi}
+	
+COPY:xmsyn-jyehi_nom-jyehi_gen (Gen &SUGGEST) EXCEPT (Nom &msyn-jyehi_nom-jyehi_gen) TARGET (&msyn-jyehi_nom-jyehi_gen) ;
+
 #!! ### Possessive pronouns > reflexive pronouns
 
 ADD:xmsyn-suu-jieijas (&msyn-suu-jieijas) TARGET ("sun" Pers Sg3 Gen) OR ("sun" Pers Sg3 Acc) IF (*-1 ("sun" Pers Sg3 Nom) OR (N Prop Nom Sem/Fem) OR (N Prop Nom Sem/Mal) OR (N Prop Nom Sem/Sur) BARRIER S-BOUNDARY); 
 	## Sun vuolgij suu viistán ullopääiđih soolâst.
+	
 
 #!! ### Phrasal verbs
 
-	# syntactic errors
-	# ----------------
-
 	# Redundant adverbs in phrasal verbs 2->1
 	# -----------------------------------------------------
 ADD:xsyn-delete-adv-phrasal-verb (&syn-delete-adv-phrasal-verb) TARGET (Adv) IF (0 ("kiddâ") LINK -1 (Loc)) (*0  ("tolliđ") BARRIER S-BOUNDARY) ;