| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [prep] | 1101 |
|
| 2 | must be in | 324 |
|
| 3 | must be at | 149 |
|
| 4 | must be on | 128 |
|
| 5 | must be of | 86 |
|
| 6 | must be for | 75 |
|
| 7 | must be like | 70 |
|
| 8 | must be to | 38 |
|
| 9 | must be worth | 34 |
|
| 10 | must be by | 24 |
|
| 11 | must be about | 22 |
|
| 12 | must be from | 19 |
|
| 13 | must be within | 13 |
|
| 14 | must be with | 12 |
|
| 15 | must be under | 10 |
|
| 16 | must be among | 9 |
|
| 17 | must be off | 7 |
|
| 18 | must be between | 7 |
|
| 19 | must be near | 6 |
|
| 20 | must be over | 6 |
|
| 21 | must be after | 6 |
|
| 22 | must be as | 5 |
|
| 23 | must be through | 5 |
|
