grammar fixes

docs/fundamentals/write-operations.txt

@@ -22,7 +22,7 @@ Overview
 
 In this guide, you can learn how to use {+odm-short+} to perform
 **write operations** on your MongoDB collections. Write operations include
-inserting, updating, and deleting data based on criteria that you specify.
+inserting, updating, and deleting data based on specified criteria.
 
 This guide shows you how to perform the following tasks:
 
@@ -38,12 +38,12 @@ Insert Documents
 In this section, you can learn how to insert documents into MongoDB collections
 from your Laravel application by using the {+odm-long+}.
 
-When you insert the documents, make sure that the data does not violate any
+When you insert the documents, ensure the data does not violate any
 unique indexes on the collection. When inserting the first document of a
 collection or creating a new collection, MongoDB automatically creates a
 unique index on the ``_id`` field.
 
-For more information creating indexes on MongoDB collections by using the
+For more information on creating indexes on MongoDB collections by using the
 Laravel schema builder, see the :ref:`laravel-eloquent-indexes` guide.
 
 This section uses the following example model class to demonstrate how to
@@ -69,8 +69,8 @@ section.
 Insert a Document Examples
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The examples in this section show how to use the ``save()`` Eloquent method to
-insert an instance of a ``Concert`` model as a MongoDB document.
+These examples show how to use the ``save()`` Eloquent method to insert an
+instance of a ``Concert`` model as a MongoDB document.
 
 When the ``save()`` method succeeds, the instance on which you called the
 method contains the model. If it fails, the instance is assigned a null value.
@@ -89,8 +89,8 @@ This example code performs the following actions:
    :start-after: begin model insert one
    :end-before: end model insert one
 
-You can retrieve the inserted document id value by accessing the ``id`` member
-of the model as shown in the following code example:
+You can retrieve the inserted document's ``_id`` value by accessing the model's
+``id`` member as shown in the following code example:
 
 .. literalinclude:: /includes/fundamentals/write-operations/WriteOperationsTest.php
    :language: php
@@ -114,21 +114,21 @@ To learn more about the Carbon PHP API extension, see the
 Insert Multiple Documents Example
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The example in this section show how to use the ``insert()`` Eloquent method
-to insert multiple instances of a ``Concert`` model as MongoDB documents.
-This bulk insert method reduces the number of calls that your application needs
-to make to save the documents.
+This example shows how to use the ``insert()`` Eloquent method to insert
+multiple instances of a ``Concert`` model as MongoDB documents. This bulk
+insert method reduces the number of calls your application needs to make
+to save the documents.
 
-When the ``insert()`` method succeeds, the method returns the value ``1``.
-If it fails, the method throws an exception.
+When the ``insert()`` method succeeds, it returns the value ``1``. If it
+fails, it throws an exception.
 
 The example code saves multiple models in a single call by passing them as
 an array to ``insert()`` method:
 
 .. note::
 
     This example wraps the dates in the `MongoDB\BSON\UTCDateTime <{+phplib-api+}/class.mongodb-bson-utcdatetime.php>`__
-    class to convert it to a type that MongoDB can serialize because Laravel
+    class to convert it to a type MongoDB can serialize because Laravel
     skips attribute casting on bulk insert operations.
 
 .. literalinclude:: /includes/fundamentals/write-operations/WriteOperationsTest.php