| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we have [vb pp] [det] | 1790 |
|
| 2 | must have [vb pp] [det] | 262 |
|
| 3 | we must have [vb pp] | 74 |
|
| 4 | we must have [det] | 24 |
|
