| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i must have [verb] [pers pn] | 65 |
|
| 2 | i must have [vb pp] [pers pn] | 64 |
|
| 3 | i must have left [pers pn] | 5 |
|
| 4 | i must have leave [pers pn] | 5 |
|
