| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have been [adj] [noun sg] | 52 |
|
| 2 | [pron] [modal v] have been some [noun sg] | 51 |
|
| 3 | [pron] must have been some [noun] | 31 |
|
| 4 | [pron] must have been [det] [noun sg] | 31 |
|
| 5 | [pron] must [verb] been some [noun sg] | 26 |
|
| 6 | [pron] must have [be] some [noun sg] | 26 |
|
| 7 | [pron] must have [been] some [noun sg] | 26 |
|
| 8 | [pron] must have be some [noun sg] | 26 |
|
| 9 | [pron] must have been some [noun sg] | 26 |
|
