diff --git a/lib/anchor_end.js b/lib/anchor_end.js
index 56e8b85..e196e7b 100644
--- a/lib/anchor_end.js
+++ b/lib/anchor_end.js
@@ -1,3 +1,4 @@
 module.exports = function (str) {
   // TOOD
-}
\ No newline at end of file
+   return /BANANAS$/g.test(str)
+}
diff --git a/lib/anchor_start.js b/lib/anchor_start.js
index 56e8b85..d02e899 100644
--- a/lib/anchor_start.js
+++ b/lib/anchor_start.js
@@ -1,3 +1,4 @@
 module.exports = function (str) {
   // TOOD
-}
\ No newline at end of file
+  return /^LITERALLY/g.test(str)
+}
diff --git a/lib/char_class.js b/lib/char_class.js
index a08ee57..5368881 100644
--- a/lib/char_class.js
+++ b/lib/char_class.js
@@ -1,3 +1,4 @@
 module.exports = function (str) {
   // TODO
-}
\ No newline at end of file
+  return /^[a1u4o]/g.test(str)
+}
diff --git a/lib/negated_char_class.js b/lib/negated_char_class.js
index a08ee57..ddcb9ae 100644
--- a/lib/negated_char_class.js
+++ b/lib/negated_char_class.js
@@ -1,3 +1,4 @@
 module.exports = function (str) {
   // TODO
-}
\ No newline at end of file
+  return /^\D[^A-Z]/g.test(str)
+}