Suggest exists

Author: jsoref

.github/actions/spelling/line_forbidden.patterns

@@ -266,6 +266,9 @@
 # Should be `exceeds`
 \bis higher than\b
 
+# Should be `... exists`
+\b(?:an?|the) \w+[a-rt-z] already exist\b
+
 # Should be `fall back`
 (?<!\ba )\bfallback(?= to)\b