Introduction and conclusion on cohabitating before marriage

Answer 1

Your introduction and conclusion depend upon what you've written in the body of your paper.

Answer 2

This site is excellent on how to write both an intro and a conclusion.

http://members.tripod.com/~lklivingston/essay/intro.html

Answer 3

Intro: It's really a lousy deal for kids.

Conclusion: It's really a lousy deal for kids.