どこ

どこ is an essential question word asking about location.

こそあど SERIES (PLACE):

• ここ: here (near speaker)
• そこ: there (near listener)
• あそこ: over there (far from both)
• どこ: where (question)

PARTICLE USAGE:

• どこに: where (location/destination with に)
• どこへ: where to (direction with へ)
• どこで: where (location of action with で)
• どこから: where from (origin)

DERIVED FORMS:

• どこか: somewhere, anywhere (indefinite)
• どこも: everywhere, nowhere (with negative)
• どこでも: anywhere, wherever

COMMON PHRASES:

• どこの国(くに): which country
• どこが痛(いた)い: where does it hurt