| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could not [prep] | 98 |
|
| 2 | [pers pn] could not [prep] | 96 |
|
| 3 | it [modal v] not [prep] | 81 |
|
| 4 | it could [adv] [prep] | 18 |
|
| 5 | it could not [prep] | 12 |
|
| 6 | it could not [prep] | 12 |
|
