一度でうまくいかなければ何度でもやれの英語

If it does not go well, it must be done over and over again.

I have tried again and again, but in vain

to do anything at a time―at a stroke―at a heat―at a breath―at a fling

If, by any chance, I should fail, I would try again

No matter if I fail once or twice, I shall be sure to succeed in time.

I'm none the worse for a single failure.

If you are daunted by a single failure, you can not succeed in anything.

If you fail, try again!

If I should fail, I will [would] try again.

A tumour must ulcerate before it can heal.

Should I fail, I would try again.

All my attempts have been in vain, and I have given it up in despair―given it up as a bad job.

I can not afford to be discouraged by―be disheartened by―a single failure.

Chastity, once lost, is beyond retrieve―past retrieve.

Let a man have his fling, and he will not look back.

It is foolish to give up when have only failed once or twice.

A single failure discouraged me from trying again.

It never rains but it pours.

All my attempts have been in vain, and I have given it up in despair―given it up as a bad job.

You must not be daunted by a single failure.

You must not be daunted by a single failure.

I am none the worse for a single failure.

of a thing that has gone, to come again

Not content with a single failure, he must go and make another mess of it.

Not content with a single failure, he must go and make another mess of it.

Take care, or you will spoil the game.

I have failed so often that I have given up the attempt in despair―given it up as a bad job.

Everybody fails once or twice.

If we get it wrong [don't succeed] this time, there'll be no way of salvaging the situation.

I think it is all right, but I will go over it once more.