diff --git a/src/LinkedListMultiSet.java b/src/LinkedListMultiSet.java
new file mode 100644
index 0000000..d6646a8
--- /dev/null
+++ b/src/LinkedListMultiSet.java
@@ -0,0 +1,15 @@
+public class LinkedListMultiSet {
+    // the main body for the LinkedListMultiSet class still needs to be implemented
+
+    // the Node class is meant to only be used by the LinkedListMultiSet class so I made it private and nested
+    // if anyone knows another way to do this can you show me/
+    private class Node {
+        private Object item;
+        private Node next;
+        public Node(Object item) {
+            this.item = item;
+            this.next = null;
+
+        }
+    }
+}
diff --git a/src/Multiset.java b/src/Multiset.java
new file mode 100644
index 0000000..066b638
--- /dev/null
+++ b/src/Multiset.java
@@ -0,0 +1,32 @@
+public class Multiset {
+    public boolean add(Object item) {
+        throw new UnsupportedOperationException();
+
+    }
+
+    public void remove(Object item) {
+        throw new UnsupportedOperationException();
+
+    }
+
+    public boolean contains(Object item) {
+        throw new UnsupportedOperationException();
+
+    }
+
+    public boolean is_empty() {
+        throw new UnsupportedOperationException();
+
+    }
+
+    public int count(Object item) {
+        throw new UnsupportedOperationException();
+
+    }
+
+    public int size() {
+
+        throw new UnsupportedOperationException();
+    }
+
+}
diff --git a/src/Tree.java b/src/Tree.java
index 458a7c7..cb0bc70 100644
--- a/src/Tree.java
+++ b/src/Tree.java
@@ -1,2 +1,16 @@
+import java.util.Collections;
+import java.util.List;
+
 public class Tree {
-}
+    private Object _root;
+    private List<Tree> _subtrees;
+
+    public Tree(Object root, Object subtrees) {
+        this._root = root;
+        if (subtrees == null) {
+            this._subtrees = Collections.emptyList();
+
+            }
+        }
+    }
+
diff --git a/src/TreeMultiSet.java b/src/TreeMultiSet.java
new file mode 100644
index 0000000..fd6239c
--- /dev/null
+++ b/src/TreeMultiSet.java
@@ -0,0 +1,4 @@
+public class TreeMultiSet {
+    private Tree tree;
+    // Tree class needs to be implemented before this
+}