| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] could [pers pn] never [vb infin] | 5 |
|
| 2 | why could [pers pn] never [verb] | 5 |
|
| 3 | [Wh adv] could [pers pn] never [verb] | 5 |
|
| 4 | why could [pers pn] never [verb] | 5 |
|
