| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be for [det] | 65 |
|
| 2 | must be [prep] [det] | 48 |
|
| 3 | must be for [adj] | 10 |
|
| 4 | must [be] for [det] | 5 |
|
| 5 | must be for [det] | 5 |
|
| 6 | must [be] for [det] | 5 |
|
