How to trust someone again who has consistently lied?

well at the long run if you keep trusting someone even though that person carries on lying, that person deep down knows that they can trust you and eventually they will trust you, thus you trusting them.

With great difficulty. Trust cannot be bought or just give, it is earned. I advise to try to move on

Trusting someone who has lied to you can be difficult- I can understand your hesitancy. What do you feel about it?

for me,I am a very trusting person, so lying doesn't settle with me, but it would depend on the situation i was in, whether they have a legitimate reason to lie. I know, the answer it not to shut them out, as it's likely that they will too eventually stop caring to make the effort. As much as it hurts for me, I do remain on my guard but know that the trust will come back in time. Time is the best healer

Imagine if you were them, tell them what you would tell yourself. (Like if you were lying you would tell yourself to stop by telling yourself to stop doing things that you would have to lie about.)

Firstly I would suggest analysing if this is something that you actually want to do. If someone is not willing to be truthful with you then they do not deserve your trust. That said, If they are working on their behavour then absolutely give them another chance. The key to trust is actually in understanding that you trust your ability to cope if they hurt you. This is empowering because you hold the power to choose how you react and what you tell yourself about the situation. You need to decide if the change is genuine and they are not just pretending to change until you forget about the issue. Are you strong enough to forgive them and deal with another betrayl of trust? Always put yourself first.

First of all, accept that it will be hard. Let them know that you're trying to trust them again, and that anything they do to prove their trustworthiness is noticed and appreciated. Tell them that your relationship is in a fragile place, so anything they do to breach your trust will send you back to the beginning of the journey. Sometimes, you're subconscious won't actually trust the person still. Your brain automatically gets defensive after being lied to so many times. But if you believe they are changing for the better, you have to make a conscious leap of faith to trust them. The longer you make the leap the more natural it will feel.

I think the answer is you can't, or perhaps shouldn't. If this person must be in your life, then I think you need to explore ways in which you can live with them while not trusting them completely. If they don't need to be in your life, it might be worth giving them some space or moving on from them. But if you feel that you should try to trust them simply because you need to keep them around, I'm not convinced it's something you should or even could do. If they've consistently proven that they are not trustworthy, unfortunately I think that's something you need to come to terms with and work around as much as possible/is necessary.

Once the trust is broken, it is difficult to regain that trust. So it is okay if it takes a lot of time for you to trust someone. Take baby steps and keep high expectations if you can. It is okay if you do not trust anyone at all. Even though trust is the base of a relationship, mending a broken trust is like repairing a broken mirror. It might not always be possible to bring the mirror back, or even if you do, you will see many cracks.If we talk of lying, I will not justify the constant lying, however, everyone does lie at least once in their life. It is just a human tendency.

You don't. Although past behavior doesn't dictate future behavior, it's often a good indicator. Since they've consistently lied in the past, what's stopping them from lying again? Or perhaps even finding new ways to do so in the future once you've managed to trust them again? Until they've proven to you that they've changed for good, which often requires some life-altering event, it's safe to say take everything they say with a grain of salt. This is not to say, people don't lie to cover their own insecurities. So working with the person to gain their trust could also be feasible depending on the scenario.