君がそれを信じようと信じまいと僕にはどうでも良い。の英語

It makes no difference to me whether you believe it or not.

It makes little difference to me whether you believe it or not.

I want you to believe that.

All you have to do is believe me.

All you have to do is (to) believe me.

Give me some credit.

I shall take you at your word.

I'll buy it [that].

If you believe that, you'd believe anything!

I believe you.

Since you say so, I think I must believe it.

I guess I'll believe you.

You can't ask us to believe this.

It is foolish of you to believe such a thing.

That's impossible for me.

That's hard to believe for me.

No matter if you believe or not, I am in the middle of my research.

What should I do to be able to trust you?

Whatever you may say, I don't believe you.

One might wish to believe it.

It's up to you whether you believe that or not.

I want to believe that.

I want to believe.

It's naive of you to believe that.

I believe you.

I believe in you.

I think that you won't believe it.

I'm begging you please believe me.

Better believe it.

Better believe it.