Formal:
* કેમ છો? (kem chho?) - This is the most common and polite way to ask "how are you?" It's used for friends, family, and acquaintances.
* શું સુખે છો? (shu sukhe chho?) - This translates to "are you well?" and is also a polite way to ask.
Informal:
* કેમ? (kem?) - This is a casual way to ask "how are you?" and is often used with friends.
* કેવું? (kevu?) - This translates to "how?" and can be used to ask about someone's health, mood, or day.
Adding "you" to the phrase:
* તમે કેમ છો? (tame kem chho?) - This literally translates to "you how are?" and is a more formal way to address someone.
* તમે કેવું છો? (tame kevu chho?) - This literally translates to "you how are?" and is a more casual way to address someone.
Choosing the best translation:
The best way to choose the right translation is to consider the context and the level of formality. For example, if you are talking to a stranger, you would use a more formal greeting like "કેમ છો?" or "શું સુખે છો?". If you are talking to a friend, you could use a more casual greeting like "કેમ?" or "કેવું?".
Remember that Gujarati is a rich language with a wide range of dialects, so there may be other ways to say "how are" that are used in specific regions.