| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] that [art] | 214 |
|
| 2 | problem is that [art] | 152 |
|
| 3 | problem is [adv] [art] | 21 |
|
| 4 | problem is [adv] that | 10 |
|
