| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [verb] [been] | 1981 |
|
| 2 | [pron] [verb] [been] some | 416 |
|
| 3 | [pron] must [verb] some | 188 |
|
| 4 | must [verb] [been] some | 43 |
|
