I've been that way often enough to know the symptoms.
It's important to know the symptoms of a heart attack and call 9-1-1 if someone is having them.
It was too true, I who am a physician knew the symptoms well.
I expect you know the symptoms pretty well,' said Bobby.
She'd seen enough of it to know the symptoms - and the cure.
He was waking all right; Harry knew the symptoms from personal experience.
There are a lot of parents who don't know the symptoms.
"I'll need to know the symptoms before I can identify the disease," she replied.
Ovarian cancer can be caught early if you know the symptoms.
Make sure your friends and family know the symptoms.