| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the problem is [conj] | 325 |
|
| 2 | the problem is [adv] | 178 |
|
| 3 | the problem [adv] [conj] | 30 |
|
| 4 | problem is [adv] [conj] | 13 |
|
