| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did [adv] [pron] [vb infin] | 606 |
|
| 2 | did [adv] [pron] [vb infin] [conj] | 47 |
|
| 3 | why did [pron] [vb infin] [conj] | 27 |
|
