He made full use of that opportunity.

It's difficult to remember words with irregular conjugation.

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

Learning the inflected forms in Japanese is difficult.

I started studying the conjugation of 'shiku'.

I participate in club activities every day.

I am studying for the Japanese Language Proficiency Test next year.

I'm sorry, but I don't speak Japanese.

The government declared a state of emergency to prevent the spread of the new coronavirus.

Learning irregular verbs is difficult.