Formal:
* আমি ভালো আছি (ami valo achi): This is the most common and literal translation, meaning "I am well."
* আমি সুস্থ আছি (ami sustho achi): This means "I am healthy." It implies you are physically well.
Informal:
* আমি ঠিক আছি (ami thik achi): This means "I am okay" and is more casual than "ami valo achi."
* ভালো (valo): This is a simple and common way to say "good" and can be used to answer "How are you?" in an informal setting.
* আচ্ছা (achcha): This is a very informal way to say "fine" and can be used in casual conversations among friends.
Other options:
* আমি ভালো আছি, ধন্যবাদ (ami valo achi, dhonnobad): This means "I am well, thank you."
* আমি ভালো আছি, আপনার কেমন আছে? (ami valo achi, aponar kemon ache?) This means "I am well, how are you?"
The best option depends on the situation and your relationship with the person you are talking to.