| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [vb pp] [prep] [noun sg] | 790 |
|
| 2 | must be [vb pp] in [noun] | 322 |
|
| 3 | must be [vb pp] [prep] [noun pl] | 220 |
|
| 4 | must be [vb pp] by [noun] | 167 |
|
| 5 | must be [vb pp] into [noun] | 120 |
|
| 6 | must be [vb pp] with [noun] | 115 |
|
| 7 | must be taken [prep] [noun] | 101 |
|
| 8 | must be [vb pp] [prep] [noun prp] | 92 |
|
| 9 | must be [vb pp] to [noun] | 88 |
|
| 10 | must be [vb pp] [prep] account | 81 |
|
| 11 | must be [vb pp] [prep] account | 81 |
|
| 12 | must be made [prep] [noun] | 62 |
|
| 13 | must be [vb pp] [prep] mind | 61 |
|
| 14 | must be [vb pp] [prep] mind | 61 |
|
| 15 | must be [vb pp] on [noun] | 57 |
|
| 16 | must be borne [prep] [noun] | 51 |
|
| 17 | must be [vb pp] [prep] order | 50 |
|
| 18 | must be [vb pp] [prep] order | 50 |
|
| 19 | must be [vb pp] for [noun] | 49 |
|
| 20 | must be [vb pp] from [noun] | 43 |
|
| 21 | must be [vb pp] as [noun] | 34 |
|
| 22 | must be [vb pp] at [noun] | 28 |
|
| 23 | must be [vb pp] [prep] terms | 27 |
|
| 24 | must be [vb pp] [prep] term | 27 |
|
| 25 | must be [vb pp] [prep] caution | 26 |
|
| 26 | must be [vb pp] [prep] caution | 26 |
|
| 27 | must be used [prep] [noun] | 22 |
|
| 28 | must be treated [prep] [noun] | 20 |
|
| 29 | must be [vb pp] [prep] care | 19 |
|
| 30 | must be [vb pp] [prep] advance | 19 |
|
