| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [conj] | 11808 |
|
| 2 | problem be [conj] | 822 |
|
| 3 | problem be [adv] | 651 |
|
| 4 | problem [adv] [conj] | 176 |
|
