| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] did n't they [vb infin] [pron] | 21 |
|
| 2 | why did n't they [vb infin] [pron] | 20 |
|
| 3 | [Wh adv] did n't they [vb infin] [pron] | 20 |
|
| 4 | why did n't they [vb infin] [pron] | 20 |
|
| 5 | did n't they [vb infin] [pron] [prep] | 10 |
|
| 6 | did n't they [vb infin] [pron] [adv] | 10 |
|
| 7 | did n't they [vb infin] [pron] [prep] | 10 |
|
| 8 | did n't they [vb infin] [pron] [adv] | 6 |
|
