Questions & Answers about On choruje rzadko, ale dziś naprawdę czuje się chory.
In Polish, subject pronouns like on (he) are often optional because the verb ending already shows the person and number.
- Choruje rzadko – grammatically fine, and very natural in context when it’s clear who you’re talking about.
- On choruje rzadko – adds a bit of emphasis on “he”, for example:
- contrasting with someone else: On choruje rzadko, ale jego siostra często choruje.
(He rarely gets sick, but his sister often does.)
- contrasting with someone else: On choruje rzadko, ale jego siostra często choruje.
So on is not grammatically required; it’s used for clarity or emphasis.