я многое узнал

I learned a lot

→ я
phrase Rare #51,015
I learned a lot Узнал is the masculine form; a female speaker would say «я многое узнала».
RU: За эту неделю я многое узнал.
EN: I learned a lot this week.

Я многое узнал и продолжаю узнавать.

I have learned a lot and continue to learn.

Я многое узнал от Тома об астрономии.

I learned a lot about astronomy from Tom.