| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] [prep] [pron] | 1489 |
|
| 2 | must have [vb pp] [pron] | 1075 |
|
| 3 | must have [vb pp] [prep] | 694 |
|
| 4 | must have [prep] [pron] | 13 |
|
