| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [is] [prep] [adj] [noun] | 2901 |
|
| 2 | [noun sg] [is] [prep] [adj] [noun] | 2343 |
|
| 3 | problem [be] [prep] [adj] [noun] | 11 |
|
| 4 | problem [is] [prep] [adj] [noun] | 9 |
|
