We were allowed to speak either in English or in Japanese

I know an American girl who speaks Japanese very well

Even Japanese can make mistakes when they speak Japanese

Japanese children brought up overseas sometimes face great difficulty in adjusting themselves to Japanese schools after returning, even though they have a perfect command of Japanese

The foreigner speaks Japanese fairly well

Please translate this sentence into Japanese

Call someone who speaks Japanese, please

He speaks Japanese very well

After I got all worked up about ordering in English, I walked in the store and they greeted me with "Irasshaimase!" I felt, like, "What the ...?

People often say that Japanese is a difficult language