Usage Note
Sino is one of the core interrogative words in Tagalog, used to ask about a person's identity and functioning as a relative pronoun meaning whoever. It precedes the verb or topic marker in questions and is extremely high-frequency in everyday speech at all registers.
Examples
" Sino ang nasa pinto? "
Natural Translation
Who is at the door?
Literal Translation
Who the at door?
" Sino ang kasama mo kahapon? "
Natural Translation
Who were you with yesterday?
Literal Translation
Who the with you yesterday?
" Hindi ko pa rin alam kung sino ang nagbigay sa akin ng regalong ito kahapon. "
Natural Translation
I still don't know who gave me this gift yesterday.
Literal Translation
Not I still also know if who the gave to me of gift this yesterday.
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