| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | problem [be] [conj] it [is] [adj] | 5 |
|
| 2 | problem [is] [conj] it [is] [adj] | 5 |
|
| 3 | problem be [conj] it [is] [adj] | 5 |
|
| 4 | problem is [conj] it [is] [adj] | 5 |
|
