| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem [is] [to-vb] a [adj] [noun] | 5 |
|
| 2 | problem [is] [that] a [adj] [noun] | 5 |
|
| 3 | problem [is] that a [adj] [noun] | 5 |
|
| 4 | problem [is] [conj] a [adj] [noun] | 5 |
|
| 5 | problem [is] that a [adj] [noun] | 5 |
|
| 6 | problem [is] [verb] a [adj] [noun] | 5 |
|
| 7 | problem [is] a [adj] [noun] [prep] | 6 |
|
| 8 | problem [is] a [adj] [noun] [prep] | 6 |
|
