| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the problem be [prep] the | 15 |
|
| 2 | the problem [be] [prep] the | 15 |
|
| 3 | the problem [is] [prep] the | 11 |
|
| 4 | the problem is [prep] the | 11 |
|
| 5 | the problem [be] with the | 5 |
|
