| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] some [noun] | 393 |
|
| 2 | must [verb] some [noun] | 179 |
|
| 3 | must [verb] [been] [noun] | 120 |
|
| 4 | must [verb] [been] some | 43 |
|
