| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] [prep] | 5097 |
|
| 2 | must be [verb] [prep] | 5095 |
|
| 3 | must be [vb pp] [prep] | 4921 |
|
| 4 | must be [verb] in | 945 |
|
| 5 | must be [verb] by | 795 |
|
| 6 | must be [verb] to | 714 |
|
| 7 | must be [verb] with | 409 |
|
| 8 | must be [verb] for | 340 |
|
| 9 | must be [verb] on | 278 |
|
| 10 | must be make [prep] | 253 |
|
| 11 | must be made [prep] | 253 |
|
| 12 | must be [verb] at | 249 |
|
| 13 | must be [verb] as | 227 |
|
| 14 | must be [verb] into | 198 |
|
| 15 | must be [verb] from | 197 |
|
| 16 | must be taken [prep] | 180 |
|
| 17 | must be take [prep] | 180 |
|
| 18 | must be [v-ing] [prep] | 161 |
|
| 19 | must be seen [prep] | 131 |
|
| 20 | must be see [prep] | 131 |
|
| 21 | must be [verb] within | 111 |
|
| 22 | must be given [prep] | 109 |
|
| 23 | must be give [prep] | 109 |
|
| 24 | must be [verb] of | 100 |
|
| 25 | must be [verb] before | 82 |
|
| 26 | must be paid [prep] | 81 |
|
| 27 | must be pay [prep] | 81 |
|
| 28 | must be [verb] against | 80 |
|
| 29 | must be do [prep] | 71 |
|
| 30 | must be used [prep] | 68 |
|
