| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem [be] that | 761 |
|
| 2 | problem be that | 761 |
|
| 3 | problem [be] that | 720 |
|
| 4 | problem is that | 614 |
|
| 5 | problem [is] that | 614 |
|
| 6 | problem [was/were] that | 145 |
|
| 7 | problem was that | 145 |
|
| 8 | problems [be] that | 41 |
|
