fix(curriculum): fix typos in 'Working with Loops' lecture (#62054)

curriculum/challenges/english/blocks/lecture-working-with-loops/67329f7f3d1bd75c17896c66.md

@@ -11,7 +11,7 @@ Loops in programming are used to repeat a block of code multiple times.
 
 An example of a loop would be when you are designing a program that needs to print out a list of items. You could use a loop to print out each one of the items in the list.
 
-Another example would be when you designing a game and you want to move a character across the screen. You could use a loop to move the character a certain number of pixels each time the loop runs. 
+Another example would be when you are designing a game and you want to move a character across the screen. You could use a loop to move the character a certain number of pixels each time the loop runs. 
 
 In JavaScript, there are several types of loops that you can use. In this lecture, we will cover the `for` loop. Here is the basic syntax for a `for` loop:
 

curriculum/challenges/english/blocks/lecture-working-with-loops/6732c05595ca7d422b9e55ff.md

@@ -89,7 +89,7 @@ for (const prop in person) {
 }
 ```
 
-In this example have a custom function `isObject` that checks if the value is an object.
+In this example, we have a custom function `isObject` that checks if the value is an object.
 
 The `Array.isArray` method is used to check if the value is an array. By placing the logical NOT operator (`!`) in front of the method, we are checking if the value is not an array.