| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be a [adj] | 1537 |
|
| 2 | must be a [adj] | 502 |
|
| 3 | must [adv] be [adj] | 429 |
|
| 4 | must [adv] be a | 127 |
|
