もっと頑張ればよかったんだよ。の英語

You should have worked harder.

You should've studied harder.

You had better have studied harder.

You should have studied harder.

If only I had just put in a little more effort.

I have to do better.

You ought to have [should have] worked harder.

Why didn't you study harder!

You should study harder.

Please try harder at that.

You should have worked harder.

You should've worked harder.

I should have studied more.

I should exercise more.

I should get more exercise.

You should have been more careful.

You should've been more careful.

I thought I wanted to try harder.

I'll try harder next time.

You yourself should try harder.

You must study more.

You should study harder.

You should have worked harder.

You should have studied harder.

You should've studied harder.

He should have worked harder.

I think I should have studied more.

I should have studied that more.

Try and do better next time.

You need to work harder.