Shōrai ni tsuite kangaetsuzukeru koto wa taisetsu desu.

It is important to keep thinking about your future.

Muzukashii mondai desu ga, akiramezu ni kangaetsuzukeyō.

It is a difficult problem, but let's keep thinking without giving up.

Kare wa hitobanchū, sono kaiketsusaku o kangaetsuzuketa.

He kept thinking about the solution all night long.

Watashi wa kono mondai ni tsuite, kodomo no koro kara kangaetsuzukete imasu.

I have been continuing to think about this issue since I was a child.

Yoi aidea o dasu tame ni wa, kangaetsuzukeru hitsuyō ga arimasu.

In order to come up with good ideas, it is necessary to keep thinking.

Wakaranai koto ga attemo, kangaetsuzukereba kotae ga mitsukaru hazu desu.

Even if there are things you don't understand, if you keep thinking, you should be able to find the answer.