| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] [conj] | 14867 |
|
| 2 | problem [is] [conj] | 613 |
|
| 3 | problem [is] [verb] | 462 |
|
| 4 | problem [verb] [conj] | 126 |
|
