| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could be | 9090 |
|
| 2 | could be [noun prp] | 107 |
|
| 3 | [pron] be [noun prp] | 34 |
|
| 4 | [pron] could [noun prp] | 25 |
|
