diff --git a/src/Mod/Assembly/Gui/TaskAssemblyConstraints.ui b/src/Mod/Assembly/Gui/TaskAssemblyConstraints.ui
index 9c940cfc90..9ccb247c7e 100644
--- a/src/Mod/Assembly/Gui/TaskAssemblyConstraints.ui
+++ b/src/Mod/Assembly/Gui/TaskAssemblyConstraints.ui
@@ -192,7 +192,7 @@
          </sizepolicy>
         </property>
         <property name="toolTip">
-         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Fixes the first geometry in its rotation and translation. Note that fix only works its the direct parrent assembly. If you stack assemblys, the parent assembly will not be fixed inside the other ones.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Fixes the first geometry in its rotation and translation. Note that fix only works its the direct parent assembly. If you stack assemblys, the parent assembly will not be fixed inside the other ones.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
         </property>
         <property name="text">
          <string>Fix</string>
@@ -642,7 +642,7 @@
          </sizepolicy>
         </property>
         <property name="toolTip">
-         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Makes the geometries normals  point in the opposite direction. Note that for cylinders the base cirles normal is used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Makes the geometries normals  point in the opposite direction. Note that for cylinders the base circles normal is used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
         </property>
         <property name="text">
          <string>Opposite</string>
@@ -680,7 +680,7 @@
          </sizepolicy>
         </property>
         <property name="toolTip">
-         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Makes the geometries normals perpendicular. Note that for cylinders the base cirles normal is used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Makes the geometries normals perpendicular. Note that for cylinders the base circles normal is used.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
         </property>
         <property name="autoFillBackground">
          <bool>false</bool>