| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb past] [pers pn] [verb] | 1292 |
|
| 2 | why [vb past] [pers pn] [vb infin] | 1149 |
|
| 3 | [adv] [vb past] [pers pn] do | 255 |
|
| 4 | why [verb] [pers pn] do | 167 |
|
| 5 | why [vb past] [pers pn] do | 104 |
|
| 6 | why [vb past] [pron] do | 98 |
|
