| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb past] [pron] [vb infin] | 1160 |
|
| 2 | [adv] [vb past] i [vb infin] | 343 |
|
| 3 | why [verb] i [vb infin] | 221 |
|
| 4 | [Wh adv] [vb past] i [vb infin] | 203 |
|
| 5 | why [vb past] i [verb] | 87 |
|
| 6 | why [vb past] i [vb infin] | 84 |
|
