| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could not [verb] [Wh adv] [indef pn] | 5 |
|
| 2 | [pers pn] could not [verb] [adv] [indef pn] | 5 |
|
| 3 | [pron] could not [vb infin] [adv] [indef pn] | 5 |
|
| 4 | [pron] could not [verb] [adv] [indef pn] | 5 |
|
