| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] problem [be] [that] [pron] | 121 |
|
| 2 | [art] problem [be] [adv] [pron] | 17 |
|
| 3 | [art] problem [be] [adv] [that] | 17 |
|
| 4 | problem [be] [adv] [that] [pron] | 9 |
|
