| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] is [conj] | 16368 |
|
| 2 | problem [be] [conj] | 822 |
|
| 3 | problem be [conj] | 822 |
|
| 4 | problem [is] [conj] | 647 |
|
