Formal:
* Kocham Cię (koh-hahm tsen) - This is the most direct and formal way to say "I love you" in Polish.
Informal:
* Kocham Ciebie (koh-hahm tshe-byeh) - This is a slightly more casual and affectionate way to say "I love you" and is often used between lovers.
* Kocham Cię bardzo (koh-hahm tsen bar-dzo) - This literally translates to "I love you very much" and is a more intense way to express love.
Other options:
* Bardzo Cię kocham (bar-dzo tsen koh-hahm) - This is another way to say "I love you very much" and is slightly more emphatic than "Kocham Cię bardzo."
* Uwielbiam Cię (oo-vyel-byam tsen) - This is a less intense way to say "I love you" and is more often used to express deep affection or admiration for someone.
The best way to choose which phrase to use depends on the context and your relationship with the person you are speaking to.