| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they be [prep] [det] [noun] | 188 |
|
| 2 | must be [prep] [det] [noun] | 28 |
|
| 3 | they must be [prep] [noun] | 8 |
|
| 4 | they must be [prep] [det] | 5 |
|
