| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem [is] a [adj] [noun sg] | 11 |
|
| 2 | problem [is] a [adj] [noun] | 11 |
|
| 3 | problem is a [adj] [noun] | 10 |
|
| 4 | problem [is] a [adj] [noun] | 9 |
|
