| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did n't he [vb infin] | 68 |
|
| 2 | why did he [adv] [vb infin] | 12 |
|
| 3 | did n't he [adv] [vb infin] | 11 |
|
| 4 | why did n't he [adv] | 7 |
|
