| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did [pers pn] [vb infin] | 1149 |
|
| 2 | [no cls] did [pers pn] [vb infin] | 134 |
|
| 3 | [no cls] why did [pers pn] | 8 |
|
