| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [verb] been a [noun] | 126 |
|
| 2 | [ex0] [modal v] [verb] been a [noun] | 123 |
|
| 3 | [ex0] [vb mod] [verb] been a [noun] | 123 |
|
| 4 | [ex0] must [verb] been [art] [noun] | 56 |
|
| 5 | [ex0] must [verb] been [art] [noun] | 56 |
|
| 6 | [ex0] must [verb] been a [noun] | 55 |
|
| 7 | [ex0] must [verb] [been] a [noun] | 49 |
|
| 8 | [ex0] must [verb] be a [noun] | 49 |
|
| 9 | [ex0] must [verb] [be] a [noun] | 49 |
|
| 10 | [ex0] must [verb] been a [noun] | 49 |
|
