| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be in [noun] | 750 |
|
| 2 | must be in [noun] | 128 |
|
| 3 | must [adv] be [noun] | 39 |
|
| 4 | must [adv] be in | 38 |
|
