"Whether you marry or not" goes an old saying,"your sure to regret it."

(2)Today,however, psychologists are trying to reduce the regret spouses may feel about their marital situations.(3)One of the approaches taken by these psychologists has been to investigate the foundations for a happy marriage.(4)Their findings are worth attending to.(5)In particular,couples planning to marry may lower the chance of divorce by comparing their relationship to those of happily married couples.
(6)What are the ingredients that go into making a couple happy with their marriage?(7)Sexual compatibility,for one thing,doesn't seem to be as important as earlier researchers thought; the ability to discuss problems, on the other hand,is.(8)In fact, most researchers beleive that the ability to discuss problems may be the single most important ingredient in a happy marriage.(9)Moreover, how couples discuss their problems was equally important.
(10) These findings hold true for more than the couple who is already married.(11)In fact,they are equally valid for couples only thinking about marriage.(12)In short,the best predictor of a happy marriage may simply be this:that the man and woman are able to communicate openly and productively before the marriage even takes place.

Sentence 1;"whether you marry or not," goes an old saying,"your sure to regret it."
What correction should be made to this sentence?

1. replace Whether with whether
2. change marry to married
3. replace goes with went
4. replace your with your're
5. no correction is necessary

4 ?

Yes, 4.

No correction is necessary.