diff --git a/system/Database/SQLSRV/Forge.php b/system/Database/SQLSRV/Forge.php
index e0ea75939521..09f9a14b3d7d 100755
--- a/system/Database/SQLSRV/Forge.php
+++ b/system/Database/SQLSRV/Forge.php
@@ -28,7 +28,7 @@ class Forge extends BaseForge
 	/**
 	 * CREATE DATABASE IF statement
 	 *
-	 * @todo missing charset, collat & check for existant
+	 * @todo missing charset, collat & check for existent
 	 *
 	 * @var string
 	 */
diff --git a/system/Exceptions/CriticalError.php b/system/Exceptions/CriticalError.php
index 23353d21e0b4..c8355721a8ff 100644
--- a/system/Exceptions/CriticalError.php
+++ b/system/Exceptions/CriticalError.php
@@ -14,7 +14,7 @@
 use Error;
 
 /**
- * Error: Critical conditions, like component unavailble, etc.
+ * Error: Critical conditions, like component unavailable, etc.
  */
 class CriticalError extends Error
 {
diff --git a/system/Filters/Filters.php b/system/Filters/Filters.php
index 2ef555fa1521..ef74821ece05 100644
--- a/system/Filters/Filters.php
+++ b/system/Filters/Filters.php
@@ -444,7 +444,7 @@ protected function processGlobals(string $uri = null)
 	}
 
 	/**
-	 * Add any method-specific flters to the mix.
+	 * Add any method-specific filters to the mix.
 	 *
 	 * @return void
 	 */