| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it could [adv] be | 511 |
|
| 2 | it could not be | 371 |
|
| 3 | could not [adv] be | 276 |
|
| 4 | it could not [adv] | 74 |
|
| 5 | it not [adv] be | 7 |
|
