A little bit of common sense should teach you to know better.
After a warning like that, he really should know better.
After all that he's been through, you'd hope he'd know better.
After seeing the consequences, he finally began to know better.
After that experience, I certainly hope he knows better.
After this incident, the hope is they’ll all know better.
Anyone with a degree would know better.
As a parent, you really should know better than to spoil your children too much.
As the team lead, he should certainly know better.
Being a scientist, she ought to know better than to rely on anecdotal evidence.
Considering his age, he certainly should know better.
Despite everything, they still don’t seem to know better.
Even a child should know better than to play with fire.
Even after this, I doubt they’ll know better.
Even beginners usually know better than to make that mistake.
Even inexperienced workers usually know better than that.
Even the cat should know better than to jump on the kitchen counter.
Even the interns should know better than to leave confidential documents lying around.
Even the novices should know better than to handle that equipment carelessly.
Even though he was tempted, he did know better than to give in.
Everyone in the team knows better.
Experience has taught me to know better.
Having failed once, she should definitely know better this time.
Having lived here all her life, she should certainly know better.
Having worked in the industry for years, he really should know better.
He just doesn’t seem to be able to learn to know better.
He might be young, but he should still know better.
He should know better than to trust a stranger with his secrets.
He was clearly too impulsive to know better at the time.
He'll know better next time, after facing the consequences.
He's intelligent; he has to know better than to believe that nonsense.
He's learning to know better through trial and error.
He's old enough to know better.
He's too stubborn to admit he should know better.
He’s just too young to know better.
He’s old enough to know better than to tease her.
I doubt they know better, considering their limited experience.
I hope my teenagers know better than to sneak out of the house.
I hope that, eventually, everyone will know better.
I hope they know better than to repeat the same mistakes.
I suspect she knows better, but she doesn't care.
I thought a seasoned chef would know better.
I thought I raised you to know better than that.
I thought she would know better than to leave the oven on.
I trusted her to know better.
I'm quite certain she knows better.
I'm starting to think they don't actually know better.
I'm surprised she doesn't know better; it's widely known.
I’d hope that they would know better after that incident.
I’m hoping this will help them to know better in the future.
If he doesn't know better by now, he never will.
It remains to be seen whether they will ever know better.
It's a hard lesson to learn, but it will make you know better.
It's a lesson that teaches you to know better in the future.
It's hard to believe he doesn't know better, given his education.
It's hard to say if he actually knows better.
It’s plausible that they don’t know better, given the circumstances.
It’s quite possible that he truly doesn’t know better.
Life experience will eventually teach you to know better.
Maybe if they experience the consequences, they will know better.
Maybe they do know better, but they're choosing to ignore it.
Now that you've been warned, you should know better.
One would expect a politician to know better than to make promises they can't keep.
Perhaps a harsher punishment will teach them to know better.
Perhaps someday, he will learn to know better.
She acts innocent, but she knows better.
She may be young, but she should know better than to lie.
She ought to know better, considering her professional background.
She pretended to know better, but I could see she was clueless.
She still acts as if she doesn’t know better.
She tried to warn him, but he thought he knew better.
She's experienced enough to know better than to fall for that trick.
She’s still learning, so she might not know better yet.
Someone in his position should certainly know better.
Surely a trained professional should know better than this.
Surely the leaders know better than to instigate conflicts.
Surely, the experts must know better.
Surely, they know better than to drive after drinking alcohol.
The consequences of his actions taught him to know better.
The evidence suggests they should have known better.
The manual clearly states it, so you have no excuse to not know better.
The school should teach students to know better.
They acted like they didn't know better, but I suspect they did.
They assumed I would know better.
They really should know better; it's common sense.
They should know better by now than to argue with the teacher.
They should know better, based on their extensive research.
They're expected to know better.
They’re just too caught up in the moment to know better.
We would all fare better if we all knew better.
We, as a society, should know better than to tolerate injustice.
We're all adults here; we should know better.
With time, you'll learn to know better.
You need to teach your kids to know better.
You'd assume a lawyer would know better than to break the law.
You'd hope the authorities would know better.
You'd think the dog would know better than to chew on my shoes again.
You'll eventually grow to know better.
You'll know better next time, I promise you.
You're supposed to know better.