| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [conj] [conj] [pron] [verb] | 359 |
|
| 2 | problem [is] [conj] [pron] [verb] | 62 |
|
| 3 | problem [conj] [conj] [pron] [verb] | 20 |
|
| 4 | problem [is] [conj] [conj] [pron] | 15 |
|
