31.   Glenn never knew his father.

32.   Greg barely knew his father, who was so devoted to making his lumber business thrive that he had little time for his five children.

33.   He barely knew his father.

34.   He knows his father.

35.   He never knew his father, and dropped out of high school despite being in an academically advanced program in grade school.

36.   He has never known his father.

37.   He said that he did not know any of the men, but that he knew the father of one of them.

38.   He never knew his father, and his grandfather, who helped raise him, died in May.

39.   He never really knew his father and lost his mother to a murderer when he was barely a teenager.

40.   He is a bright boy who knows his father well.