Life is hard, but I am harder.

The police are really good at understanding "Someone stole my credit card and ran up a lot of charges." It's a lot harder to get them to buy into "Someone stole my magic sword."

You should study harder.

You must study much harder.

All you have to do is to work harder.

You need to study harder.

You should have worked harder.

I think it necessary for you to study harder.

I want you to work harder.

I expect you to work harder.

The sky grew darker and darker, and the wind blew harder and harder.

The sky grew darker and darker, and the wind blew harder and harder.

Instead of taking a rest, he worked much harder than usual.

The wind blew harder yet when we reached the top of the hill.

If he wants to succeed at all, he must work harder.

The job of a driver is harder than it looks.

The rain fell even harder.

Generally speaking, high school students study harder than college students.

The difference is this: he works harder than you.

Mr. Young wishes his son would study harder.

You are bound to fail unless you study harder.

I regret that I did not work harder.

You will fail unless you work harder.

Will you please advise him to work harder?

You'll never achieve anything if you don't study harder.

If you had studied harder, you would have passed the examination.

You had better have studied harder.

If he had worked harder, he might be a rich man now.

If you want to go to college, study English harder.

If you are to realize your dream, you must work harder.

Had he worked harder, he could have succeeded.

If you are to succeed, you must work harder.

Now that you're a college student, you should study harder.

Rack your brains a little harder.

If anything, my new job is harder than my old one.

I wish I had studied harder for the test.

I'll study harder in the future.

With your mother in the hospital, you'll have to work harder.

Whoo! Today's practice is tough - much harder than usual.

I tried harder than usual, so I'm all the more exhausted.

He tried harder to get good marks than I did.

If he had trained himself harder at that time, he would be healthier now.

You have to work harder to make up for lost time.

You'll have to study harder from now on.

It is necessary for you to study harder.

You have to study Japanese harder.

You should study English harder.

All you have to do is study harder.

I think it a pity that you do not study harder.

He should have worked harder.

"Why don't you wish a little harder?" asked the little white rabbit.

You should study still harder.

Study harder from now on.

My new job is harder than my old one.

Were I you, I would study harder.

I have made up my mind to work harder.

I persuaded my brother to study harder.

I made up my mind to study harder.

I will have to study harder.

I resolved that I would work harder.

I resolved to study harder.

I regret not having studied harder at school.

I should have studied harder before the term exams.

I want to make you work harder.

I study math harder than English.

I study math harder than you do.

I inspired my students to work harder.

I told them to study harder.

I wish I had studied English harder while young.

I wish I had studied harder in my youth.

I wish I'd studied harder when I was young.

I wish I had studied English harder when I was young.

If you are to succeed in life, work harder.

Promotion was an incentive to harder work.

If you are to get ahead in life, you must work harder.

If you are to succeed, you must try harder.

Work harder if you are to succeed.

The teacher's talk stimulates Mary to study harder.

Our teacher urged us to study harder.

The teacher told me to study harder.

If I had studied English harder when I was at college, I could travel abroad at any time.

Iron is harder than gold.

If he had studied harder, he would have passed the exam.

The bigger the words he used, the harder it was to find anything in them.

He'll fail, unless he tries harder.

He wishes he had studied harder when he was young.

He worked harder than ever.

He studies harder than any other student does in his class.

He is in danger of losing his position unless he works harder.

He'll never achieve anything unless he works harder.

He says that he will study English harder.

He decided to study harder.

He studies much harder than before.

He regrets not having worked harder at school.

He works all the harder because his baby was born.

Despite my warnings, he works no harder.

He works harder than I did at his age.

He worked all the harder because his master praised him.

He studied all the harder for being praised by his teacher.

He studied the harder because he was praised by his teacher.

He encouraged his son to study harder.