| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [adv] be | 74360 |
|
| 2 | [modal v] [adv] be | 74360 |
|
| 3 | could [adv] be | 7505 |
|
| 4 | could [adv] [be] | 7505 |
|
| 5 | could [adv] be | 7500 |
|
| 6 | could [adv] [be] | 7500 |
|
