| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is that [conj] [art] | 278 |
|
| 2 | problem is [conj] [art] | 152 |
|
| 3 | problem is that [art] | 148 |
|
| 4 | problem is that [conj] | 51 |
|
