| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so it could [adv] [vb infin] | 12 |
|
| 2 | so it could [not/n't] [vb infin] | 6 |
|
| 3 | so it could not [vb infin] | 6 |
|
| 4 | so it could [adv] [vb infin] | 6 |
|
| 5 | so it could [adv] have | 5 |
|
