| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [is] [conj] it | 1824 |
|
| 2 | [noun sg] [is] [conj] it | 1629 |
|
| 3 | problem [is] [conj] [pron] | 185 |
|
| 4 | problem [be] [conj] it | 43 |
|
| 5 | problem [is] [conj] it | 36 |
|
