Stand (one) in good stead Verb + object/complement
To be extremely useful and beneficial to someone.
My anorak has stood me in good stead this winter.
Learning Chinese will stand her in good stead when she goes to work in the export department
Speaking English fluently stands you in good stead when you are sent to Australia on business.
To attempt to do something but produce no result or effect
No value, use, or purpose
Not be useful or suitable to anyone or anything
To undertake something that appears to be useless
To benefit or positively influence someone/something.
The verb "stand" should be conjugated according to its tense.
Daughter: So I really want all my friends to have a great time. I was thinking it would be a good idea to have some candy out on the tables for people to snack on.
Mother: Well, if you want them to really enjoy themselves, candy is dandy but liquor is quicker.