Formal:
* Как (pronounced "kak") - This is the most common and straightforward way to ask "how" in general. It is used in formal contexts.
Informal:
* Как дела? (pronounced "kak dy-la") - This is the most common way to ask "how are you?" in an informal context. It literally means "how are your affairs?"
* Как ты? (pronounced "kak ty") - This is a more casual way to ask "how are you?" directly to someone.
* Как поживаете? (pronounced "kak pazhi-vaye-tye") - This is a polite way to ask "how are you?" to someone you respect, especially older people.
Example sentences:
* Как вы? (pronounced "kak vy") - How are you? (formal)
* Как дела? (pronounced "kak dy-la") - How are you doing? (informal)
* Как ты? (pronounced "kak ty") - How are you? (informal, to someone you know well)
* Как поживаете? (pronounced "kak pazhi-vaye-tye") - How are you? (formal, to someone you respect)
You can use these phrases with different verbs to express different meanings:
* Как вы себя чувствуете? (pronounced "kak vy sy-bya chuv-stvoo-ye-te") - How are you feeling? (formal)
* Как ты себя чувствуешь? (pronounced "kak ty sy-bya chuv-stvoo-ye-sh") - How are you feeling? (informal)
Remember to use the correct pronoun depending on who you are talking to.