| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been some [noun] of | 21 |
|
| 2 | [vb mod] have been some [noun] of | 21 |
|
| 3 | must have been some [noun] [prep] | 18 |
|
| 4 | must have been [adj] [noun] of | 15 |
|
| 5 | must have been [det] [noun] of | 11 |
|
| 6 | must have [been] some [noun] of | 10 |
|
| 7 | must have be some [noun] of | 10 |
|
| 8 | must [vb infin] been some [noun] of | 10 |
|
| 9 | must have been some [noun] of | 10 |
|
| 10 | must have [be] some [noun] of | 10 |
|
| 11 | must have been some [noun] of | 10 |
|
| 12 | must [verb] been some [noun] of | 10 |
|
| 13 | must have been some [noun] of | 10 |
|
