| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [adj] [noun] | 203 |
|
| 2 | must have been [adj] [noun] | 116 |
|
| 3 | must have [be] [adj] [noun] | 43 |
|
| 4 | must have be [adj] [noun] | 43 |
|
| 5 | must have [been] [adj] [noun] | 42 |
|
| 6 | must [verb] been [adj] [noun] | 42 |
|
| 7 | must have been [adj] [noun] | 42 |
|
| 8 | must [vb infin] been [adj] [noun] | 42 |
|
