| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't [pron] [verb] | 1954 |
|
| 2 | do n't [pron] [adv] [verb] | 407 |
|
| 3 | why do n't [pron] [adv] | 200 |
|
| 4 | why do [pron] [adv] [verb] | 117 |
|
