| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] why did they [vb infin] | 12 |
|
| 2 | [adv] why did they [vb infin] | 12 |
|
| 3 | so why did they [vb infin] | 5 |
|
| 4 | so why did they [vb infin] | 5 |
|
