| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [adj] problem be | 487 |
|
| 2 | the problem be [conj] | 424 |
|
| 3 | the [adj] problem [conj] | 224 |
|
| 4 | [adj] problem be [conj] | 218 |
|
| 5 | the [adj] be [conj] | 33 |
|
