How would you say are doing very good in spanish?

Muy bien. This is the most common way to say "very good" in Spanish. It can be used in a variety of contexts, both formal and informal.

* Estoy muy bien, gracias. (I'm very well, thank you.)

* La comida estaba muy bien. (The food was very good.)

* La película fue muy bien. (The movie was very good.)

Perfecto. This word is also used to mean "very good," but it is less common than muy bien. It is often used in formal settings.

* Todo salió perfecto. (Everything went perfectly.)

* La presentación fue perfecta. (The presentation was perfect.)

Excelente. This word is used to mean "excellent," which is a stronger way to say "very good." It is often used in formal settings.

* El trabajo fue excelente. (The work was excellent.)

* La comida fue excelente. (The food was excellent.)

Fantástico. This word is used to mean "fantastic," which is a very strong way to say "very good." It is often used in informal settings.

* La fiesta fue fantástica. (The party was fantastic.)

* El viaje fue fantástico. (The trip was fantastic.)

Increíble. This word is used to mean "incredible," which is a very strong way to say "very good." It is often used in informal settings.

* La vista era increíble. (The view was incredible.)

* El concierto fue increíble. (The concert was incredible.)