shall

"My obligation to my family means I need to visit them regularly. "

"The company recalled the toy car because it contained a known defective that could pose a safety hazard to children. "

"The sisters dressed similarly."

"A possible solution to the math problem is to use the formula. "

"The hospital volunteer group functions as an important auxiliary to the nursing staff. "

"What is your question?"

"Are you suggesting that I killed my wife?"

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

"Through sheer determination, we managed to escape from the tornado."

"He examined the crime scene for clues."

"The guard blew his whistle to indicate imminent departure."

"In English grammar, "dog" is the singular of "dogs." "