diff --git a/pyomo/core/base/constraint.py b/pyomo/core/base/constraint.py
index 5a9d1da5af1..bc9a32f5404 100644
--- a/pyomo/core/base/constraint.py
+++ b/pyomo/core/base/constraint.py
@@ -191,7 +191,7 @@ def to_bounded_expression(self):
         Note
         ----
         As this method operates on the *current state* of the
-        expression, the any required expression manipulations (and by
+        expression, any required expression manipulations (and by
         extension, the result) can change after fixing / unfixing
         :py:class:`Var` objects.
 
@@ -200,7 +200,7 @@ def to_bounded_expression(self):
 
         ValueError: Raised if the expression cannot be mapped to this
             form (i.e., :py:class:`RangedExpression` constraints with
-            variable lower of upper bounds.
+            variable lower or upper bounds.
 
         """
         expr = self._expr