| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb infin] [pron] | 87180 |
|
| 2 | why [verb] [pron] | 3961 |
|
| 3 | [Wh adv] [vb infin] [pron] | 186 |
|
| 4 | why [vb infin] [pron] | 176 |
|
