He is viewing that situation as a serious problem.

He views that situation as a problem.

No problem, I will do that job.

That proposal is completely unthinkable.

As a practical question, how are we going to fund this project?

Learning the inflected forms in Japanese is difficult.

Monograde verb conjugation class verbs play a very important role in Japanese grammar.

It's difficult to remember words with irregular conjugation.

In Japanese grammar, the nominative case is a very important part.

He became a successful businessman by fully utilizing his talents.