| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] must be [vb pp] [adv prt] by | 15 |
|
| 2 | [noun sg] must be [vb pp] [adv prt] by | 9 |
|
| 3 | [noun pl] must be [vb pp] [adv prt] by | 5 |
|
| 4 | must be [vb pp] [adv prt] by [art] | 16 |
|
| 5 | must be [vb pp] [adv prt] by [art] | 16 |
|
| 6 | must be [vb pp] [adv prt] by the | 13 |
|
| 7 | must be [vb pp] [adv prt] by the | 13 |
|
