| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] this problem [verb] [be] | 10 |
|
| 2 | [prep] this problem [verb] [be] | 10 |
|
| 3 | to this problem [verb] [be] | 7 |
|
| 4 | to this problem [verb] [be] | 7 |
|
| 5 | this problem [verb] [be] [verb] | 25 |
|
| 6 | this problem [verb] [be] [vb pp] | 20 |
|
