Formal:
* Magaling! (literally "good!") - This is a very general and versatile phrase that can be used in many situations.
* Napakaganda ng gawa mo! (literally "Your work is very beautiful!") - This is a more formal and complimentary way to say "good work."
* Napakagaling mo! (literally "You are very good!") - This is a more personal way to say "good work" and can be used to praise someone's skill or talent.
Informal:
* Galing! (literally "skill!") - This is a very common and informal way to say "good work."
* Ang galing mo! (literally "You are skilled!") - This is a more personal and encouraging way to say "good work."
* Okay yan! (literally "That's okay!") - This is a more casual way to say "good work" and can be used to acknowledge someone's effort.
Specific:
* Mahusay na trabaho! (literally "Good job!") - This is a more formal way to say "good work" and can be used in professional settings.
* Napakahusay mo! (literally "You are very good!") - This is a more personal and encouraging way to say "good work."
The best way to choose the appropriate phrase is to consider the context and your relationship with the person you are speaking to.