| Question word | Use it for | Structure | Example |
| What | things | What + is/are + subject? | What is this? It is a marker. |
| Where | location | Where + is/are + subject? | Where are the keys? They are in the bag. |
| Who | people | Who + is/are + subject? | Who is that? That is the teacher. |
| Whose | owner | Whose + noun + is/are + this/these? | Whose pencil is this? It is Ana's. |
WH focus
Who, whose, and who's are not the same
In Unit 2, students use WH questions to ask for classroom information. Who asks for a person, whose asks for the owner of an object, and who's is only the contraction of who is. This distinction is important because Spanish speakers often translate ¿de quién? word by word and produce incorrect questions like Of who is this pencil?
Who = quién
Use who when the answer is a person, not an object and not an owner.
Who is that? That is the teacher.
Who is your classmate? Maria is my classmate.
Whose = de quién
Use whose when the answer is the owner of something. It normally goes before the noun.
Whose pencil is this?
Whose keys are these?
Who's = who is
Who's sounds like whose, but it means who is. It does not show possession.
Who's that? = Who is that?
Who's your teacher? = Who is your teacher?
| Question type | Structure | Example | Possible answer |
| One owner / one object | Whose + singular noun + is + this/that? | Whose notebook is this? | It is Ana's notebook. / It is Ana's. / It is hers. |
| One owner / many objects | Whose + plural noun + are + these/those? | Whose keys are these? | They are Carlos's keys. / They are Carlos's. / They are his. |
| Owner + location | Whose + noun + is/are + location phrase? | Whose backpack is under the chair? | It is Laura's backpack. / It is Laura's. |
Who vs. whose in real class questions
Who is that?Pregunta por una persona: ¿Quién es?
Whose pencil is this?Pregunta por el dueño: ¿De quién es este lápiz?
Who has the pencil?Pregunta quién tiene el lápiz ahora, not necessarily the owner.
Common Spanish-speaker mistakes
Who pencil is this? → Whose pencil is this?Use whose before the object.
Of who is this pencil? → Whose pencil is this?Do not translate de quién word by word.
Who are these keys? → Whose keys are these?Keys are things, not people. Ask for the owner.
These is my keys. ✕
These are my keys. ✓
The book is in the desk. ✕
The book is on the desk. ✓
Where are the backpack? ✕
Where is the backpack? ✓
Who pencil is this? ✕
Whose pencil is this? ✓
Study note: the corrections show sentence patterns students must notice before speaking or writing classroom descriptions. In this section, students must especially separate who for people, whose for possession, and who's for who is.