| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [vb pp] [prep] a | 71 |
|
| 2 | must have [verb] as a | 17 |
|
| 3 | must have come [prep] a | 13 |
|
| 4 | must have come [prep] a | 12 |
|
| 5 | must have [verb] like a | 11 |
|
| 6 | must have go [prep] a | 6 |
|
| 7 | must have [verb] for a | 6 |
|
| 8 | must have [verb] in a | 6 |
|
| 9 | must have gone [prep] a | 6 |
|
