diff --git a/verify.py b/verify.py
index dd41e9a..29493b4 100644
--- a/verify.py
+++ b/verify.py
@@ -48,11 +48,15 @@ def validBind(key, data, alias = False) -> list:
 
     return ret
 
-validKeyList = [  '\'', '=', ',', '-',
-    '.', '/', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'semicolon',
-     '[', '\\', ']', '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'space', 'enter',
-     'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
-     'x', 'y', 'z', 'mouse1', 'mouse2', 'mouse3', 'mouse4', 'mouse5', 'capslock', 'ctrl' ]
+validKeyList = [
+    '\'', '=', ',', '-', '[', '\\', ']', '`', '.', '/',
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+    'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+    'u', 'v', 'w', 'x', 'y', 'z',
+    'mouse1', 'mouse2', 'mouse3', 'mouse4', 'mouse5',
+    'shift', 'capslock', 'ctrl', 'semicolon', 'space', 'enter'
+]
 
 def validKey(key):
     """determines if the key is a valid key"""
@@ -60,6 +64,10 @@ def validKey(key):
     return key in validKeyList
 
 def validBindType(key, data: dict):
+    """
+    Checks if `key` has a valid bind type,
+    like 'double' or 'hold'
+    """
     validType = False
     types = [
         "impulse",
@@ -91,10 +99,27 @@ def removeRelaventFields(data, bindType):
         if "primary" not in content:
             errMsgs.append("Double requires primary action")
         else:
-            errMessages = validBind("primary", content)
+            # Nasty bit of recursion to validate the action.
+            # It takes advantage of `alias = True` not verifying the key,
+            # but it isn't an alias, I'm just lazy.
+            errMessages = validBind("primary", content["primary"], alias = True)
+            if len(errMessages) > 0:
+                errMsgs += errMessages
+        
         if "secondary" not in content:
             errMsgs.append("Double requires secondary action")
+        else:
+            # Same logic as above
+            errMessages = validBind("secondary", content["secondary"], alias = True)
+            if len(errMessages) > 0:
+                errMsgs += errMessages
+        
         if "condition" not in content:
             errMsgs.append("Double requires condition to toggle")
+        else:
+            # Validate the toggler
+            key = content["condition"]
+            if not validKey(key):
+                errMsgs.append(f'Invalid key "{key}"')
 
     return data, errMsgs