51.  You had a good reason for every dumb thing you did which you said I would understand someday.

52.  They must have had a good reason to do it.

53.  There is good reason to doubt this.

54.  Fred has given me no good reason for wanting to break up our marriage.

55.  The revolting sight of animals being slaughtered for no good reason.

56.  Give me one good reason why I should believe you.

57.  Whereas there are many good reasons to switch to Plan B, we must stick with Plan A as long as it is feasible.

58.  Give me one good reason why I should stay.

59.  These changes are being made for a good reason.

60.  I expected the ride of my life, and with good reason.