e.g.
| Question | Who/What | did | whom/what | when | where |
| Who invented ... telephone? | ? | invented | telephone | ||
| What did Edison invent? | Edison | invented | ? | ||
| Did Alexander Graham Bell invent the telephone? | Alexander Graham Bell | invented | the telephone | ||
| Who invented what? | ? | invented | ? | ||
| Who invented (something)? | ? | invented | |||
| What was when invented? | invented | ? | ? | ||
| Where was the telephone invented? | invented | the telephone | ? |