diff --git a/tempest/common/waiters.py b/tempest/common/waiters.py
index 85a03cf..e57197d 100644
--- a/tempest/common/waiters.py
+++ b/tempest/common/waiters.py
@@ -50,7 +50,7 @@
                     return
                 # NOTE(afazekas): The instance is in "ready for action state"
                 # when no task in progress
-                # NOTE(afazekas): Converted to string bacuse of the XML
+                # NOTE(afazekas): Converted to string because of the XML
                 # responses
                 if str(task_state) == "None":
                     # without state api extension 3 sec usually enough
diff --git a/tempest/thirdparty/boto/test.py b/tempest/thirdparty/boto/test.py
index 1ff4dee..55b8b12 100644
--- a/tempest/thirdparty/boto/test.py
+++ b/tempest/thirdparty/boto/test.py
@@ -303,7 +303,7 @@
     @classmethod
     def get_lfunction_gone(cls, obj):
         """If the object is instance of a well know type returns back with
-            with the correspoding function otherwise it assumes the obj itself
+            with the corresponding function otherwise it assumes the obj itself
             is the function.
             """
         ec = cls.ec2_error_code
@@ -467,7 +467,7 @@
                         client.InvalidInstanceID.NotFound.match(exc) is None:
                     return "_GONE"
                 # NOTE(afazekas): incorrect code,
-                # but the resource must be destoreyd
+                # but the resource must be destroyed
                 if exc.error_code == "InstanceNotFound":
                     return "_GONE"
 
@@ -505,7 +505,7 @@
             LOG.critical("%s Volume has %s snapshot(s)", volume.id,
                          map(snaps.id, snaps))
 
-        # NOTE(afazekas): detaching/attching not valid EC2 status
+        # NOTE(afazekas): detaching/attaching not valid EC2 status
         def _volume_state():
             volume.update(validate=True)
             try:
diff --git a/tempest/thirdparty/boto/test_ec2_security_groups.py b/tempest/thirdparty/boto/test_ec2_security_groups.py
index 88ff154..594dc8b 100644
--- a/tempest/thirdparty/boto/test_ec2_security_groups.py
+++ b/tempest/thirdparty/boto/test_ec2_security_groups.py
@@ -68,5 +68,5 @@
 
         group_get = self.client.get_all_security_groups(
             groupnames=(group_name,))[0]
-        # all rules shuld be removed now
+        # all rules should be removed now
         self.assertEqual(0, len(group_get.rules))