| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be assumed | 9 |
|
| 2 | could [adv] be assumed | 9 |
|
| 3 | could [adv] [be] assumed | 9 |
|
| 4 | could not [be] assumed | 7 |
|
| 5 | could [not/n't] [be] assumed | 7 |
|
| 6 | could not [be] assumed | 7 |
|
