You can say "I am sick of the recession" or "Jaime had to stay home from school today because she was sick with the flu."
The pastor had to anoint the sick man.
My son was sick so I took him to his pediatrician.
Sick huffy bro! I want to jump it
I feel blue when i am sick and unhappy.
Since Maddy was sick, she could not got to school
"Because she was sick" is an incomplete sentence.
The sentence "As I was sick, therefore I could not go there" is grammatically correct, but the use of both "as" and "therefore" is redundant. You could say, "I was sick, so I could not go there" or "Because I was sick, I could not go there."
the young mother nurture her sick son back to health
When I got sick, I had to take my temperature using a thermometer.
I was unbearable after hearing that my partner was out sick. Hope it helps
"Because she was sick" is not any type of sentence structure. It is called a sentence fragment.
The malingerer called in to work sick, although all he had was a light cough.