his/her English
His English has improved a lot.
Su inglés es mejor que el mío.
His English is better than mine.
Ella está progresando con su inglés.
She is making progress with her English.
Su inglés no está mal para haber estudiado solo dos años.
His English isn't bad for having only studied for two years.
Ella sabe hablar español, pero su inglés es mucho mejor.
She knows how to speak Spanish, but her English is much better.
Su inglés mejorará con el paso del tiempo.
His English will improve over time.
His English is perfect.
Mejoró su inglés en dos meses.
His English improved in two months.
His English is quite good.
His English is not good.