| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] [adv prt] | 469 |
|
| 2 | must be [vb pp] [adv prt] | 381 |
|
| 3 | [vb mod] be put [adv prt] | 186 |
|
| 4 | [modal v] be put [adv prt] | 186 |
|
| 5 | must be put [adv] | 10 |
|
| 6 | must be put [adv prt] | 7 |
|
| 7 | must [be] put [adv prt] | 6 |
|
| 8 | must be put [adv prt] | 6 |
|
| 9 | must be put [adv prt] | 6 |
|
| 10 | must [be] put [adv prt] | 6 |
|
