| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [vb pp] [adv prt] by | 548 |
|
| 2 | must be [vb pp] [adv prt] [prep] | 172 |
|
| 3 | must be [vb pp] [adv prt] [prep] | 172 |
|
| 4 | must be [vb pp] [adv] by | 49 |
|
| 5 | must [be] [vb pp] [adv prt] by | 21 |
|
| 6 | must be [vb pp] [adv prt] by | 21 |
|
| 7 | must be [verb] [adv prt] by | 21 |
|
| 8 | must be [vb pp] [adv prt] by | 21 |
|
| 9 | must [be] [vb pp] [adv prt] by | 21 |
|
