| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there must [be] [det] | 239 |
|
| 2 | there must [be] [adj] | 113 |
|
| 3 | must [be] [det] [adj] | 46 |
|
| 4 | there [be] [det] [adj] | 18 |
|
