I think to become a good wife it’s important to have good communication with your husband. When you have a problem, you must explain it [I think it is simpler and more natural to say, "tell him"] and exchange [something] with him. [<-- "exchange" needs to have an object. It is a transitive verb. So what do the wife and husband need to exchange? Feelings, thoughts, worries, etc? It's your paragraph. But it needs to have something there.] After that, it’s important to be there (for one-another) in good times and bad [this is more idiomatic, specifically when talking about a man and wife, because it resembles traditional wedding vows.], to be a veritable [<--- Very uncommon word, "veritable". I suggest you find a more common word for what you are trying to say.] support. And finally, it’s necessary to be loyal and respectful to one's husband.