Everybody has things in their relationship that they wish their partner would change. The trouble is that suggesting those often doesn’t give us the response we are hoping for. But even though you don’t have control over your partner, that doesn’t mean there is nothing you can do to improve your interactions. Part of the communication problem might be a "harsh beginning" on your end, i.e. opening conversations with criticisms, sarcasm, or contempt.
Let’s say for example you wish your partner would do the dishes more. Rather than complaining that he doesn’t do it, let alone suggesting that he is a lazy slob like his brother, you might want to say: "I’ve had a busy day and feel pretty tired. I would like to rest, but I’m worried that the dishes will pile up and add to my work load in the morning. I’d like to find a solution. Can you pitch in, say, within the next hour or so?"
Here you’re not insulting or trying to control your partner, but you are taking responsibility for communicating your needs to them. But what if he doesn’t help? Maybe he tells you he is working against a deadline and doesn’t have any time to spare that night. And that happens several days in a row. Again, the way to begin the conversation is with yourself. Using "I feel" and "I need" rather than "you should" or "you always" is a much softer way to start the dialog:
"I’d like to talk to you about something. Do you have a minute? (actually wait for a response here)... In the past week, I’ve done the majority of the dishes. This is not working for me, because I don’t have that kind of energy, and it doesn’t feel very good. I need some help figuring out how to how we can divvy up the work. If that doesn’t work for you, let’s hire someone to help us out."
The main difference between this and the more common strategies of complaining, whining, nagging, sighing loudly, eye rolling, or giving the silent treatment, is that you are clearly identifying and communicating your needs. It is a non-blaming way of speaking that avoids that your partner’s defenses go up automatically. We might feel like "we shouldn’t have to" negotiate these things, but telepathy is a very unreliable form of communication!
In addition to a softer beginning, in order to get the best results, you may have to reveal more of your personal feelings, especially the more vulnerable ones underneath the annoyance.
Often what we feel on a superficial level is anger, annoyance, resentment, and judgment for the other. Try digging deeper and get in touch with what triggered those thoughts and feelings. If you notice that you feel resistant to having a cooperative attitude, this might be a sign that you’ve been avoiding certain thoughts and feelings for a while. Maybe there is some grudge or resentment you’ve never been able to admit to yourself, let alone express openly. Did you have an open heart and became disappointed? Do you feel helpless, embarrassed, or hopeless? Are you worried about being controlled? Are you afraid to trust because of past hurt?
Some couples need a third party to help them navigate these types of delicate conversations. Couples therapy can create a safe space to explore the conflicts in your relationship, providing you with the tools you'll need— both to communicate your own needs, and to listen to the needs of your partner in order to break out of the underlying dynamics and destructive patterns in your interactions with one another.