Tries

If he tries hard, he will succeed.

Bob often tries to give up smoking.

You cannot rely upon Jim's words since he tries to please everybody.

Kate tries to walk on tiptoe.

Kate isn't popular among her classmates because she always tries to have her own way.

Yes, he can, if he tries hard.

We had three tries and failed each time.

My father tries to abstain from drinking.

Water tries to find its own level.

He'll fail, unless he tries harder.