| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [verb] [adv prt] to the | 17 |
|
| 2 | must be [verb] [adv prt] to the | 17 |
|
| 3 | must [be] [vb pp] [adv prt] to the | 16 |
|
| 4 | must [be] [verb] up to the | 5 |
|
| 5 | must [be] [verb] back to the | 5 |
|
