| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [prep] the | 255 |
|
| 2 | must [be] in the | 77 |
|
| 3 | must [be] on the | 42 |
|
| 4 | must [be] for the | 20 |
|
| 5 | must [be] of the | 18 |
|
| 6 | must [be] at the | 18 |
|
| 7 | must [be] to the | 13 |
|
| 8 | must [be] among the | 8 |
|
| 9 | must [be] with the | 5 |
|
| 10 | must [be] from the | 5 |
|
| 11 | must [be] about the | 5 |
|
