| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the problem [be] [conj] | 399 |
|
| 2 | the problem [be] [prep] | 69 |
|
| 3 | problem [be] [conj] [prep] | 24 |
|
| 4 | the problem [conj] [prep] | 17 |
|
