| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] for | 340 |
|
| 2 | must [be] [vb pp] for | 322 |
|
| 3 | must [be] make for | 36 |
|
| 4 | must [be] made for | 36 |
|
| 5 | must [be] paid for | 21 |
|
| 6 | must [be] pay for | 21 |
|
| 7 | must [be] allow for | 19 |
|
| 8 | must [be] allowed for | 19 |
|
| 9 | must [be] [v-ing] for | 17 |
|
| 10 | must [be] prepare for | 13 |
|
| 11 | must [be] prepared for | 13 |
|
| 12 | must [be] find for | 12 |
|
| 13 | must [be] found for | 12 |
|
| 14 | must [be] specified for | 10 |
|
| 15 | must [be] specify for | 10 |
|
| 16 | must [be] use for | 9 |
|
| 17 | must [be] used for | 9 |
|
| 18 | must [be] look for | 7 |
|
| 19 | must [be] account for | 7 |
|
| 20 | must [be] left for | 7 |
|
| 21 | must [be] leave for | 7 |
|
| 22 | must [be] accounted for | 7 |
|
| 23 | must [be] keep for | 6 |
|
| 24 | must [be] kept for | 6 |
|
| 25 | must [be] preserved for | 5 |
|
| 26 | must [be] looking for | 5 |
|
| 27 | must [be] punished for | 5 |
|
| 28 | must [be] retain for | 5 |
|
| 29 | must [be] preserve for | 5 |
|
| 30 | must [be] retained for | 5 |
|
