diff --git a/lib/reverse_words.rb b/lib/reverse_words.rb
index cb3cc8a..6f33a2e 100644
--- a/lib/reverse_words.rb
+++ b/lib/reverse_words.rb
@@ -1,4 +1,47 @@
+require 'pry'
 # A method to reverse each word in a sentence, in place.
 def reverse_words(my_words)
-  raise NotImplementedError
+  #split string into array of words
+  return my_words if my_words.nil?
+
+  new_string = ""
+  var = ""
+
+  my_words.length.times do |x|
+    if my_words[x] != " "
+      var += my_words[x]
+    else
+      new_string += string_reverse(var)
+      new_string += my_words[x]
+      var = ""
+    end
+  end
+  new_string += string_reverse(var)
+
+  my_words.length.times do |x|
+    my_words[x] = new_string[x]
+  end
+  return my_words
 end
+
+def string_reverse(my_string)
+  return my_string if my_string.nil?
+
+  return my_string if my_string.length <= 1
+
+  i = 0
+  j = my_string.length - 1
+  b = 0
+  while i < j
+    b = my_string[i]
+    my_string[i] = my_string[j]
+    my_string[j] = b
+    i += 1
+    j -= 1
+  end
+  return my_string
+end
+
+# test_string = "I like  tomatoes"
+#
+# print reverse_words(test_string)
diff --git a/specs/reverse_words_spec.rb b/specs/reverse_words_spec.rb
index 2db8644..944b71d 100644
--- a/specs/reverse_words_spec.rb
+++ b/specs/reverse_words_spec.rb
@@ -1,6 +1,7 @@
 require 'minitest/autorun'
 require 'minitest/reporters'
 require_relative '../lib/reverse_words'
+require 'pry'
 
 describe "reverse words" do
   describe "basic tests" do
@@ -16,7 +17,7 @@
       test_string = "hello, world"
 
       reverse_words(test_string)
-
+      # binding.pry
       test_string.must_equal ",olleh dlrow"
     end
   end