| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did n't [pron] [vb infin] | 603 |
|
| 2 | [noun sg] did n't [pron] [vb infin] | 46 |
|
| 3 | [noun sg] why did n't [pron] | 8 |
|
| 4 | [noun sg] why did [pron] [vb infin] | 7 |
|
