| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did [pron] [adv] [vb infin] | 101 |
|
| 2 | why [verb] they [adv] [vb infin] | 27 |
|
| 3 | why do they [adv] [vb infin] | 27 |
|
| 4 | [adv] did they [adv] [vb infin] | 20 |
|
| 5 | why did they [adv] [verb] | 10 |
|
| 6 | why [vb past] they [adv] [vb infin] | 10 |
|
