| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do n't [pers pn] [vb infin] | 1930 |
|
| 2 | [verb] why do n't [pers pn] | 56 |
|
| 3 | [verb] do n't [pers pn] [vb infin] | 40 |
|
| 4 | [verb] why do [pers pn] [vb infin] | 38 |
|
