errs

"You must do your homework before you can watch television."

"My son's math learn is very important for his future. "

"Each person is unique, both mentally and physically."

"My sometimes neighbor, a retired teacher, still visits the school occasionally. "

"My grandmother's cough syrup is a simple; it's made from just one type of herb. "

"He erred in his calculations, and made many mistakes."

"Airplanes did not always exist as a form of transportation."

"The computer science student used tries to efficiently store and retrieve a large dictionary of words for her spelling checker program. "

"The engineer needed to perform many calculations to design the bridge. "

"I missed the target."

""Everyone makes mistakes when they are learning something new." "

"My math homework had a mistake; I added the numbers incorrectly. "