| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] to | 714 |
|
| 2 | must be [vb pp] to | 682 |
|
| 3 | [modal v] be limited to | 137 |
|
| 4 | must be limited [prep] | 14 |
|
| 5 | must be limited [prep] | 14 |
|
| 6 | must be limit to | 6 |
|
| 7 | must be limited to | 6 |
|
| 8 | must be limited to | 6 |
|
| 9 | must [be] limited to | 6 |
|
| 10 | must [be] limited to | 6 |
|
