| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have [vb pp] a [noun] | 856 |
|
| 2 | must have [vb pp] a [noun] | 192 |
|
| 3 | they must have [vb pp] a | 31 |
|
| 4 | they must have [vb pp] [noun] | 13 |
|
| 5 | they must have a [noun] | 12 |
|
