diff --git a/treeh.c b/treeh.c
index 489ea31..b66e97e 100644
--- a/treeh.c
+++ b/treeh.c
@@ -45,12 +45,12 @@ bool is_followed(const tree t){
 }
 
 //functions is_end
-bool is_end(const tree t){return t->isEnd & 1;}
-bool ends_with_apostrophe(const tree t){return t->isEnd & 2;}
+bool is_end(const tree t){return t->isEnd & 13;}//0b00010101
+bool ends_with_apostrophe(const tree t){return t->isEnd & 26;}//0b00101010
  
-bool is_common_end(const tree t){return !(t->isEnd & 12);}
-bool is_proper_end(const tree t){return t->isEnd & 4;}
-bool is_acronyme_end(const tree t){return t->isEnd & 8;}
+bool is_common_end(const tree t){return t->isEnd & 3;}//0b00000011
+bool is_proper_end(const tree t){return t->isEnd & 12;}//0b00001100
+bool is_acronyme_end(const tree t){return t->isEnd & 48;}//0b00110000
 
 int hash(char c){
   //needs to check c wether isalpha
diff --git a/treeh.h b/treeh.h
index 551ba9a..a004979 100644
--- a/treeh.h
+++ b/treeh.h
@@ -14,7 +14,7 @@ struct _node{
   char letter;
   byte isEnd;
   //0 no,1 yes,+2 if ends with 's
-  //+4if proper, +8if allUpper 
+  //*4 if proper, *16 if allUpper 
   node* next[NBCHAR];
 };
 
--
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