| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have been [adj] [noun] | 97 |
|
| 2 | [pron] [modal v] have been some [noun] | 62 |
|
| 3 | [pron] must have been [det] [noun] | 47 |
|
| 4 | [pron] must have be some [noun] | 31 |
|
| 5 | [pron] must have [been] some [noun] | 31 |
|
| 6 | [pron] must have been some [noun] | 31 |
|
| 7 | [pron] must have [be] some [noun] | 31 |
|
| 8 | [pron] must [verb] been some [noun] | 31 |
|
