diff --git a/mlir/include/mlir/IR/Operation.h b/mlir/include/mlir/IR/Operation.h
index 68ab1527b480a..1c2c04e718bf7 100644
--- a/mlir/include/mlir/IR/Operation.h
+++ b/mlir/include/mlir/IR/Operation.h
@@ -30,7 +30,7 @@ enum class OpProperties : char {};
 
 /// Operation is the basic unit of execution within MLIR.
 ///
-/// The following documentation are recommended to understand this class:
+/// The following documentations are recommended to understand this class:
 /// - https://mlir.llvm.org/docs/LangRef/#operations
 /// - https://mlir.llvm.org/docs/Tutorials/UnderstandingTheIRStructure/
 ///
@@ -66,14 +66,14 @@ enum class OpProperties : char {};
 /// tail allocated with the operation class itself, but can be dynamically moved
 /// out-of-line in a dynamic allocation as needed.
 ///
-/// An Operation may contain optionally one or multiple Regions, stored in a
+/// An Operation may optionally contain one or multiple Regions, stored in a
 /// tail allocated array. Each `Region` is a list of Blocks. Each `Block` is
 /// itself a list of Operations. This structure is effectively forming a tree.
 ///
 /// Some operations like branches also refer to other Block, in which case they
 /// would have an array of `BlockOperand`.
 ///
-/// An Operation may contain optionally a "Properties" object: this is a
+/// An Operation may optionally contain a "Properties" object: this is a
 /// pre-defined C++ object with a fixed size. This object is owned by the
 /// operation and deleted with the operation. It can be converted to an
 /// Attribute on demand, or loaded from an Attribute.
@@ -286,7 +286,7 @@ class alignas(8) Operation final
   void destroy();
 
   /// This drops all operand uses from this operation, which is an essential
-  /// step in breaking cyclic dependences between references when they are to
+  /// step in breaking cyclic dependencies between references when they are to
   /// be deleted.
   void dropAllReferences();
 
@@ -448,11 +448,11 @@ class alignas(8) Operation final
   /// to use Properties instead.
   void setInherentAttr(StringAttr name, Attribute value);
 
-  /// Access a discardable attribute by name, returns an null Attribute if the
+  /// Access a discardable attribute by name, returns a null Attribute if the
   /// discardable attribute does not exist.
   Attribute getDiscardableAttr(StringRef name) { return attrs.get(name); }
 
-  /// Access a discardable attribute by name, returns an null Attribute if the
+  /// Access a discardable attribute by name, returns a null Attribute if the
   /// discardable attribute does not exist.
   Attribute getDiscardableAttr(StringAttr name) { return attrs.get(name); }
 
@@ -515,7 +515,7 @@ class alignas(8) Operation final
   DictionaryAttr getAttrDictionary();
 
   /// Set the attributes from a dictionary on this operation.
-  /// These methods are expensive: if the dictionnary only contains discardable
+  /// These methods are expensive: if the dictionary only contains discardable
   /// attributes, `setDiscardableAttrs` is more efficient.
   void setAttrs(DictionaryAttr newAttrs);
   void setAttrs(ArrayRef<NamedAttribute> newAttrs);
@@ -529,7 +529,7 @@ class alignas(8) Operation final
   }
 
   /// Return the specified attribute if present, null otherwise.
-  /// These methods are expensive: if the dictionnary only contains discardable
+  /// These methods are expensive: if the dictionary only contains discardable
   /// attributes, `getDiscardableAttr` is more efficient.
   Attribute getAttr(StringAttr name) {
     if (getPropertiesStorageSize()) {
@@ -950,7 +950,7 @@ class alignas(8) Operation final
   /// operation.
   static constexpr unsigned kOrderStride = 5;
 
-  /// Update the order index of this operation of this operation if necessary,
+  /// Update the order index of this operation if necessary,
   /// potentially recomputing the order of the parent block.
   void updateOrderIfNecessary();