diff --git a/redis.go b/redis.go
index 67d99e1..3647895 100644
--- a/redis.go
+++ b/redis.go
@@ -8,6 +8,8 @@
 package consts
 
 const (
+	RedisCommandExists       = "EXISTS"
+	RedisCommandTTL          = "TTL"
 	RedisCommandSet          = "SET"
 	RedisCommandDel          = "DEL"
 	RedisCommandGet          = "GET"