行かなくてもいい理由があればいいのに。の英語

If only I had a good reason not to go.

I wish I had a reason not to go.

You should not be absent without a good excuse.

Your illness is sufficient reason―good reason―for absenting yourself.

I know that I have to. I just don't want to.

gave me a cockamamie reason for not going

There is a reason that I don't lose.

There is a good argument for dismissing you.

You must not be absent from the meetings without (good) cause.

There is no reason why I shouldn't do it.

Is there any reason to go there?

have good cause to do so

have cause for complaint

Why should I not ride in a carriage?

I suppose there has to be some reason.

an inventory may be necessary to see if anything is missing

There is every reason to hope for success.

Don't hesitate to tell me if you need anything.

I （can） see no reason why I should not try―why should I not try?

Despite being no big deal it's unnecessarily pompous.

It's much too pompous for such a trivial thing.

No reason, no reason.

You have good reason to get angry.

I can not dismiss him without sufficient reason.

We can not dismiss him without sufficient reason―without good cause.

You should have demanded the reason then and there.

You ought to have demanded the reason then and there.

You need not make yourself uneasy―You may make yourself easy―set your heart at ease―set your mind at rest.

You must guard against catching cold.

There's a reason for this trip.