| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [verb] be [det] | 1191 |
|
| 2 | [ex0] must [verb] be | 264 |
|
| 3 | [ex0] must be [det] | 239 |
|
| 4 | must [verb] be [det] | 100 |
|
