You, what are you doing?

That person is my friend.

You'll understand if you listen, my plan is the best choice.

I'm in the middle of a conversation, so please wait a moment.

It is important for each person to fulfill their role.

Learning Modern English is important for smooth international communication.

The study of Middle English is very important for understanding the history of English.

Wasei-eigo is a unique way of expression in Japan.

He can speak American English fluently.

I am learning Old English.