| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb past] [pers pn] [vb infin] [prep] | 591 |
|
| 2 | why [verb] [pers pn] [vb infin] [prep] | 257 |
|
| 3 | why [vb past] [pers pn] [verb] [prep] | 138 |
|
| 4 | why [vb past] [pron] [vb infin] [prep] | 122 |
|
