| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem [be] that | 720 |
|
| 2 | problem be [that] | 720 |
|
| 3 | problem is [that] | 581 |
|
| 4 | problem [is] [that] | 581 |
|
| 5 | problem was [that] | 138 |
|
| 6 | problem [was/were] [that] | 138 |
|
