| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [not/n't] [pers pn] [vb infin] | 1946 |
|
| 2 | but do [not/n't] [pers pn] [vb infin] | 117 |
|
| 3 | but why do [pers pn] [vb infin] | 102 |
|
| 4 | but why do [not/n't] [pers pn] | 39 |
|
