| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] [pron] [verb] | 1970 |
|
| 2 | so why do [pron] [verb] | 116 |
|
| 3 | so why do [not/n't] [pron] | 93 |
|
| 4 | so do [not/n't] [pron] [verb] | 19 |
|
