diff --git a/src/Compilers/CSharp/Portable/CSharpExtensions.cs b/src/Compilers/CSharp/Portable/CSharpExtensions.cs
index 06da90f727aaf9548d5ace124b676f62343db59d..6e66dfcde52c7101f6bd3c47c02a7baa443bf731 100644
--- a/src/Compilers/CSharp/Portable/CSharpExtensions.cs
+++ b/src/Compilers/CSharp/Portable/CSharpExtensions.cs
@@ -18,7 +18,7 @@ public static class CSharpExtensions
         /// </summary>
         /// <param name="token">The source token.</param>
         /// <param name="kind">The syntax kind to test for.</param>
-        /// <returns><c>true</c> if token is of specified kind; <c>false</c> otherwise.</returns>
+        /// <returns><see langword="true"/> if the token is of the specified kind; otherwise, <see langword="false"/>.</returns>
         public static bool IsKind(this SyntaxToken token, SyntaxKind kind)
         {
             return token.RawKind == (int)kind;
@@ -29,7 +29,7 @@ public static bool IsKind(this SyntaxToken token, SyntaxKind kind)
         /// </summary>
         /// <param name="trivia">The source trivia.</param>
         /// <param name="kind">The syntax kind to test for.</param>
-        /// <returns><c>true</c> if trivia is of specified kind; <c>false</c> otherwise.</returns>
+        /// <returns><see langword="true"/> if the trivia is of the specified kind; otherwise, <see langword="false"/>.</returns>
         public static bool IsKind(this SyntaxTrivia trivia, SyntaxKind kind)
         {
             return trivia.RawKind == (int)kind;
@@ -40,7 +40,7 @@ public static bool IsKind(this SyntaxTrivia trivia, SyntaxKind kind)
         /// </summary>
         /// <param name="node">The source node.</param>
         /// <param name="kind">The syntax kind to test for.</param>
-        /// <returns><c>true</c> if node is of specified kind; <c>false</c> otherwise.</returns>
+        /// <returns><see langword="true"/> if the node is of the specified kind; otherwise, <see langword="false"/>.</returns>
         public static bool IsKind(this SyntaxNode node, SyntaxKind kind)
         {
             return node?.RawKind == (int)kind;
@@ -51,7 +51,7 @@ public static bool IsKind(this SyntaxNode node, SyntaxKind kind)
         /// </summary>
         /// <param name="nodeOrToken">The source node or token.</param>
         /// <param name="kind">The syntax kind to test for.</param>
-        /// <returns><c>true</c> if node or token is of specified kind; <c>false</c> otherwise.</returns>
+        /// <returns><see langword="true"/> if the node or token is of the specified kind; otherwise, <see langword="false"/>.</returns>
         public static bool IsKind(this SyntaxNodeOrToken nodeOrToken, SyntaxKind kind)
         {
             return nodeOrToken.RawKind == (int)kind;
@@ -166,7 +166,7 @@ public static class CSharpExtensions
         /// Determines if the given raw kind value belongs to the C# <see cref="SyntaxKind"/> enumeration.
         /// </summary>
         /// <param name="rawKind">The raw value to test.</param>
-        /// <returns><c>true</c> when the raw value belongs to the C# syntax kind; <c>false</c> otherwise.</returns>
+        /// <returns><see langword="true"/> when the raw value belongs to the C# syntax kind; otherwise, <see langword="false"/>.</returns>
         internal static bool IsCSharpKind(int rawKind)
         {
             const int FirstVisualBasicKind = (int)SyntaxKind.List + 1;
diff --git a/src/Compilers/VisualBasic/Portable/VisualBasicExtensions.vb b/src/Compilers/VisualBasic/Portable/VisualBasicExtensions.vb
index 8af4271f1003329f450a809f8bdd80fcf3863998..6642905888e67631cd38acb1f3f9e75b3dc4cfe0 100644
--- a/src/Compilers/VisualBasic/Portable/VisualBasicExtensions.vb
+++ b/src/Compilers/VisualBasic/Portable/VisualBasicExtensions.vb
@@ -22,7 +22,7 @@ Namespace Microsoft.CodeAnalysis
         ''' </summary>
         ''' <param name="trivia">The source trivia.</param>
         ''' <param name="kind">The syntax kind to test for.</param>
-        ''' <returns><c>true</c> if trivia is of specified kind; <c>false</c> otherwise.</returns>
+        ''' <returns><see langword="true"/> if the trivia is of the specified kind; otherwise, <see langword="false"/>.</returns>
         <Extension>
         Public Function IsKind(trivia As SyntaxTrivia, kind As SyntaxKind) As Boolean
             Return trivia.RawKind = kind
@@ -33,7 +33,7 @@ Namespace Microsoft.CodeAnalysis
         ''' </summary>
         ''' <param name="token">The source token.</param>
         ''' <param name="kind">The syntax kind to test for.</param>
-        ''' <returns><c>true</c> if token is of specified kind; <c>false</c> otherwise.</returns>
+        ''' <returns><see langword="true"/> if the token is of the specified kind; otherwise, <see langword="false"/>.</returns>
         <Extension>
         Public Function IsKind(token As SyntaxToken, kind As SyntaxKind) As Boolean
             Return token.RawKind = kind
@@ -44,7 +44,7 @@ Namespace Microsoft.CodeAnalysis
         ''' </summary>
         ''' <param name="node">The Source node.</param>
         ''' <param name="kind">The syntax kind  to test for.</param>
-        ''' <returns><c>true</c> if node is of specified kind; <c>false</c> otherwise.</returns>
+        ''' <returns><see langword="true"/> if the node is of the specified kind; otherwise, <see langword="false"/>.</returns>
         <Extension>
         Public Function IsKind(node As SyntaxNode, kind As SyntaxKind) As Boolean
             Return node IsNot Nothing AndAlso node.RawKind = kind
@@ -55,7 +55,7 @@ Namespace Microsoft.CodeAnalysis
         ''' </summary>
         ''' <param name="nodeOrToken">The source node or token.</param>
         ''' <param name="kind">The syntax kind to test for.</param>
-        ''' <returns><c>true</c> if node or token is of specified kind; <c>false</c> otherwise.</returns>
+        ''' <returns><see langword="true"/> if the node or token is of the specified kind; otherwise, <see langword="false"/>.</returns>
         <Extension>
         Public Function IsKind(nodeOrToken As SyntaxNodeOrToken, kind As SyntaxKind) As Boolean
             Return nodeOrToken.RawKind = kind
@@ -168,7 +168,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic
         ''' Determines if the given raw kind value belongs to the Visual Basic <see cref="SyntaxKind"/> enumeration.
         ''' </summary>
         ''' <param name="rawKind">The raw value to test.</param>
-        ''' <returns><c>true</c> when the raw value belongs to the Visual Basic syntax kind; <c>false</c> otherwise.</returns>
+        ''' <returns><see langword="true"/> when the raw value belongs to the Visual Basic syntax kind; otherwise, <see langword="false"/>.</returns>
         Friend Function IsVisualBasicKind(rawKind As Integer) As Boolean
             Const LastPossibleVisualBasicKind As Integer = 8192