| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] [pron] [vb infin] | 1965 |
|
| 2 | [no cls] do [not/n't] [pron] [vb infin] | 31 |
|
| 3 | [no cls] why do [not/n't] [pron] | 23 |
|
| 4 | [no cls] why do [pron] [vb infin] | 17 |
|
