The independent reflexive pronoun (siebie)

When an action is directed back at the subject—such as doing something to "myself", "yourself", or "themselves"—Polish uses the independent reflexive pronoun. Unlike English, which changes the word depending on the person, Polish uses the exact same word for everyone!

However, this pronoun changes its form (declines) depending on its grammatical role. It does not have a Nominative form, because "oneself" can never be the subject of a sentence.

CaseFormCommon Uses
Accusative & GenitivesiebieDirect objects, dbać o (take care of), do (to)
Dative & LocativesobieIndirect objects, na (on)
Instrumentalsobązająć się (look after), z (with)

Accusative & Genitive: Siebie

Use siebie when you are the direct object of the action, such as with akceptować (to accept) and krytykować (to criticize).

You must accept yourself.
Musisz akceptować siebie.
Why do you often criticize yourself?
Dlaczego często krytykujesz siebie?

You also use siebie after prepositions that require the Accusative or Genitive cases, such as dbać o (to take care of) and having zaufanie do (trust in).

Even though I am tired, I take care of myself.
Mimo że jestem zmęczony, dbam o siebie.
Development requires trust in oneself.
Rozwój wymaga zaufania do siebie.

Dative & Locative: Sobie

When a preposition takes the Locative case, the pronoun changes to sobie. A common example during therapy is skupiać się na (to focus on).

During therapy, I focus on myself.
Podczas terapii skupiam się na sobie.
He focuses only on his development and on himself.
On skupia się tylko na swoim rozwoju i na sobie.

Instrumental: Sobą

When a verb requires the Instrumental case, such as zająć się (to look after / occupy oneself with), or when using the preposition z (with), the pronoun becomes sobą.

Now I want to look after myself.
Teraz chcę zająć się sobą.

For extra emphasis, Polish speakers often add the word sam (oneself / alone) before the pronoun, adjusting it to match the case. For example, z samym sobą means "with oneself."

When you accept yourself, you have a better relationship with yourself.
Kiedy akceptujesz siebie, masz lepszą relację z samym sobą.