| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb past] [pers pn] [vb infin] [prep] | 121 |
|
| 2 | [adv] [vb past] [pers pn] [vb infin] at | 29 |
|
| 3 | why [verb] [pers pn] [vb infin] at | 19 |
|
| 4 | why [vb past] [pron] [vb infin] at | 11 |
|
| 5 | why [vb past] [pers pn] [verb] at | 11 |
|
