| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could be [noun] [prep] | 88 |
|
| 2 | [pron] could be [noun pl] [prep] | 42 |
|
| 3 | [pron] [modal v] be problems [prep] | 41 |
|
| 4 | [pron] [vb mod] be problems [prep] | 41 |
|
| 5 | [pron] could [be] problems [prep] | 6 |
|
| 6 | [pron] could be problem [prep] | 6 |
|
| 7 | [pron] could be problems [prep] | 6 |
|
