| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did n't [pers pn] [vb infin] for | 11 |
|
| 2 | why did [not/n't] you [vb infin] for | 6 |
|
| 3 | why did [not/n't] [pers pn] send for | 5 |
|
