| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] problems [prep] [noun sg] | 203 |
|
| 2 | [adj] [prep] [art] problems [prep] | 57 |
|
| 3 | [adj] [prep] problems [prep] [noun sg] | 15 |
|
| 4 | [adj] [prep] [art] [prep] [noun sg] | 6 |
|
