| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | wonder why [pron] could [adv] | 9 |
|
| 2 | wonder why [pron] could [not/n't] | 7 |
|
| 3 | wonder why [pron] could not | 7 |
|
| 4 | wonder why [pron] could n't | 5 |
|
