| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] problem than [art] [noun sg] | 10 |
|
| 2 | problem [adv] than [art] [noun sg] | 6 |
|
| 3 | problem [adv] than [art] [noun sg] | 6 |
|
| 4 | problem than [art] [noun sg] [prep] | 7 |
|
| 5 | problem than [art] [noun sg] [prep] | 7 |
|
