| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why did n't he [verb] | 69 |
|
| 2 | why [vb past] n't he [vb infin] | 68 |
|
| 3 | why had n't he [verb] | 23 |
|
| 4 | why [vb past] n't he [vb pp] | 22 |
|
| 5 | why [vb past] n't he tell | 9 |
|
| 6 | why [vb past] n't he go | 8 |
|
| 7 | why [vb past] n't he go | 8 |
|
| 8 | why [vb past] n't he say | 7 |
|
| 9 | why [vb past] n't he tell | 6 |
|
| 10 | why [vb past] n't he come | 5 |
|
| 11 | why [vb past] n't he come | 5 |
|
| 12 | why [vb past] n't he get | 5 |
|
