| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [vb pp] some [noun] | 49 |
|
| 2 | must have [vb pp] some [noun] | 49 |
|
| 3 | must have [vb pp] some [noun sg] | 39 |
|
| 4 | must have had some [noun] | 25 |
|
| 5 | must have [vb pp] some [noun pl] | 8 |
|
