| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] been [det] [noun] [prep] | 22 |
|
| 2 | must have been [det] [noun] [prep] | 22 |
|
| 3 | must [verb] been [det] [noun] [prep] | 22 |
|
| 4 | must [vb infin] been [det] [noun] [prep] | 22 |
|
| 5 | must have been [det] [noun] [prep] | 22 |
|
| 6 | must [verb] been [det] [noun sg] [prep] | 18 |
|
| 7 | must [verb] been some [noun] [prep] | 18 |
|
| 8 | must [verb] been [det] [noun] of | 11 |
|
| 9 | must [verb] been [det] [noun] of | 11 |
|
| 10 | must [verb] been [det] sort [prep] | 6 |
|
| 11 | must [verb] been [det] sort [prep] | 6 |
|
