| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] why did n't you [vb infin] | 14 |
|
| 2 | but why did n't you [vb infin] | 10 |
|
| 3 | but why did n't you [vb infin] | 10 |
|
| 4 | [conj] why did n't you tell | 7 |
|
