| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] [prep] a [adj] | 192 |
|
| 2 | must [be] [vb pp] [prep] a [adj] | 184 |
|
| 3 | must [be] [verb] in a [adj] | 37 |
|
| 4 | must [be] [verb] as a [adj] | 35 |
|
| 5 | must [be] [verb] by a [adj] | 32 |
|
| 6 | must [be] accompanied [prep] a [adj] | 18 |
|
| 7 | must [be] accompany [prep] a [adj] | 18 |
|
| 8 | must [be] [verb] on a [adj] | 14 |
|
| 9 | must [be] seen [prep] a [adj] | 12 |
|
| 10 | must [be] [verb] to a [adj] | 12 |
|
| 11 | must [be] see [prep] a [adj] | 12 |
|
| 12 | must [be] [verb] into a [adj] | 10 |
|
| 13 | must [be] [verb] with a [adj] | 10 |
|
| 14 | must [be] [v-ing] [prep] a [adj] | 8 |
|
| 15 | must [be] make [prep] a [adj] | 8 |
|
| 16 | must [be] made [prep] a [adj] | 8 |
|
| 17 | must [be] [verb] from a [adj] | 7 |
|
| 18 | must [be] [verb] for a [adj] | 7 |
|
| 19 | must [be] [verb] [prep] a separate | 7 |
|
| 20 | must [be] [verb] [prep] a valid | 7 |
|
| 21 | must [be] based [prep] a [adj] | 6 |
|
| 22 | must [be] base [prep] a [adj] | 6 |
|
| 23 | must [be] [verb] [prep] a high | 5 |
|
| 24 | must [be] [verb] within a [adj] | 5 |
|
| 25 | must [be] done [prep] a [adj] | 5 |
|
| 26 | must [be] [verb] at a [adj] | 5 |
|
| 27 | must [be] [verb] through a [adj] | 5 |
|
| 28 | must [be] do [prep] a [adj] | 5 |
|
