| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [conj] | 11808 |
|
| 2 | problem be [conj] | 765 |
|
| 3 | problem be [adv] | 402 |
|
| 4 | problem [adv] [conj] | 85 |
|
