how (suomeksi)

kuinka (d: to what degree / in what manner / used as a modifier to indicate surprise, delight, or other strong feelings / in what state / in which way)
miten (d: in what manner / used as a modifier to indicate surprise, delight, or other strong feelings / in what state / in which way)
millä tavalla (d: in what manner / in which way)
millä tavoin (d: in what manner)
millainen (d: in what state)
minkälainen (d: in what state)