| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [noun] [is] [adv] | 4839 |
|
| 2 | of problem [be] [adv] | 9 |
|
| 3 | [prep] problem [is] [adv] | 8 |
|
| 4 | [prep] problem [is] [adv] | 8 |
|
| 5 | of problem [is] [adv] | 7 |
|
