| Who: | What: |
| Who Calls from this phone every day? | What do you usually do on Tuesdays? |
| Who did you travel with? | What did you see in Paris? |
| Who hasn't taken their medication yet? | What hasn't been washed yet? |
| |
| When: | Where: |
| When do you leave for Rome? | Where do you usually eat on special occasions? |
| When did you call? | Where did you eat yesterday? |
| When have you ever done what I've asked? | Where has Bob gone? |
| |
| Why: | How + adjective: |
| Why do you always pick me? | How hard is the test? |
| Why did Felipe ask that question? | How deep is my love? |
| Why haven't you called the airline yet? | How long do I have to wait? |
| |
| Whose: | How + adverb: |
| Whose book was on the floor? | How often do you go to the movies? |
| Whose pencil is this? | How late do you stay up? |
| Whose company is going bankrupt? | How soon are you leaving? |
| |
| Which: | |
| Which CD is yours? | |
| Which dog is brown? | |
| Which movie did you wind up seeing? | |