| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but why do [pron] [vb infin] | 104 |
|
| 2 | but [adv] do they [vb infin] | 38 |
|
| 3 | but [Wh adv] do they [vb infin] | 34 |
|
| 4 | [conj] why do they [vb infin] | 31 |
|
| 5 | but why [verb] they [vb infin] | 12 |
|
| 6 | but why do they [vb infin] | 12 |
|
| 7 | but why do they [verb] | 12 |
|
