diff --git a/lib/anchor_end.js b/lib/anchor_end.js
index 56e8b85..7d3fd2f 100644
--- a/lib/anchor_end.js
+++ b/lib/anchor_end.js
@@ -1,3 +1,6 @@
 module.exports = function (str) {
   // TOOD
+  const regExp = /BANANAS$/;
+  return regExp.test(str);
+  
 }
\ No newline at end of file
diff --git a/lib/anchor_start.js b/lib/anchor_start.js
index 56e8b85..c53b72e 100644
--- a/lib/anchor_start.js
+++ b/lib/anchor_start.js
@@ -1,3 +1,5 @@
 module.exports = function (str) {
   // TOOD
+  const regExp = /^LITERALLY/;
+  return regExp.test(str);
 }
\ No newline at end of file
diff --git a/lib/char_class.js b/lib/char_class.js
index a08ee57..378e04f 100644
--- a/lib/char_class.js
+++ b/lib/char_class.js
@@ -1,3 +1,5 @@
 module.exports = function (str) {
   // TODO
+  const regExp = /^[aou14]/;
+  return regExp.test(str);
 }
\ No newline at end of file
diff --git a/lib/negated_char_class.js b/lib/negated_char_class.js
index a08ee57..8f5f4d3 100644
--- a/lib/negated_char_class.js
+++ b/lib/negated_char_class.js
@@ -1,3 +1,5 @@
 module.exports = function (str) {
   // TODO
+  const regExp = /^[^0-9][^A-Z]/;
+  return regExp.test(str);
 }
\ No newline at end of file