| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could be [prep] | 381 |
|
| 2 | [pron] be problems [prep] | 145 |
|
| 3 | [pron] could be problems | 9 |
|
| 4 | could be problems [prep] | 6 |
|
