diff --git a/devstack/verify_top_install.sh b/devstack/verify_top_install.sh
index 8fc69279..fd2ae3d1 100755
--- a/devstack/verify_top_install.sh
+++ b/devstack/verify_top_install.sh
@@ -26,7 +26,7 @@ if [ ! -r admin-openrc.sh ];then
 exit 1
 fi
 
-echo "Begining the verify testing..."
+echo "Beginning the verify testing..."
 
 echo "Import client environment variables:"
 source $TEST_DIR/admin-openrc.sh
diff --git a/tricircle/api/controllers/routing.py b/tricircle/api/controllers/routing.py
index f73601a9..4968ee93 100644
--- a/tricircle/api/controllers/routing.py
+++ b/tricircle/api/controllers/routing.py
@@ -122,7 +122,7 @@ class RoutingController(rest.RestController):
 
         if not policy.enforce(context, policy.ADMIN_API_ROUTINGS_LIST):
             return utils.format_api_error(
-                403, _('Unauthorized to to show all resource routings'))
+                403, _('Unauthorized to show all resource routings'))
 
         filters = self._get_filters(kwargs)
         filters = [{'key': key,
diff --git a/tricircle/network/helper.py b/tricircle/network/helper.py
index ce792070..b02c3c63 100644
--- a/tricircle/network/helper.py
+++ b/tricircle/network/helper.py
@@ -571,7 +571,7 @@ class NetworkHelper(object):
     @staticmethod
     def get_create_sg_rule_body(rule, sg_id, ip=None):
         ip = ip or rule['remote_ip_prefix']
-        # if ip is passed, this is a extended rule for remote group
+        # if ip is passed, this is an extended rule for remote group
         return {'security_group_rule': {
             'tenant_id': rule['tenant_id'],
             'remote_group_id': None,
diff --git a/tricircle/tests/unit/network/test_central_plugin.py b/tricircle/tests/unit/network/test_central_plugin.py
index f6d9e41d..3cf39cba 100644
--- a/tricircle/tests/unit/network/test_central_plugin.py
+++ b/tricircle/tests/unit/network/test_central_plugin.py
@@ -1513,7 +1513,7 @@ class PluginTest(unittest.TestCase,
         for net in TOP_NETS:
             if net['name'].startswith('ns_bridge'):
                 t_ns_bridge_net_id = net['id']
-        # N-S bridge not created since no extenal network created
+        # N-S bridge not created since no external network created
         self.assertIsNone(t_ns_bridge_net_id)
 
         device_ids = ['', '', '']
diff --git a/tricircle/xjob/xmanager.py b/tricircle/xjob/xmanager.py
index b6a14a05..76c26537 100644
--- a/tricircle/xjob/xmanager.py
+++ b/tricircle/xjob/xmanager.py
@@ -672,7 +672,7 @@ class XManager(PeriodicTasks):
     @staticmethod
     def _construct_bottom_rule(rule, sg_id, ip=None):
         ip = ip or rule['remote_ip_prefix']
-        # if ip is passed, this is a extended rule for remote group
+        # if ip is passed, this is an extended rule for remote group
         return {'remote_group_id': None,
                 'direction': rule['direction'],
                 'remote_ip_prefix': ip,