| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] be problems in | 41 |
|
| 2 | [ex0] be problems in | 40 |
|
| 3 | there be problems in | 40 |
|
| 4 | there be problems in | 40 |
|
| 5 | [pron] are problems in | 26 |
|
| 6 | [pron] were problems in | 14 |
|
