Merge typo fix.
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 9948355..f5fe12a 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -1085,7 +1085,7 @@
A real :class:`list` object used to store the contents of the
:class:`UserList` class.
-**Subclassing requirements:** Subclasses of :class:`UserList` are expect to
+**Subclassing requirements:** Subclasses of :class:`UserList` are expected to
offer a constructor which can be called with either no arguments or one
argument. List operations which return a new sequence attempt to create an
instance of the actual implementation class. To do so, it assumes that the