| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] a [noun] | 19885 |
|
| 2 | should have a [noun] | 316 |
|
| 3 | should have [vb pp] [noun] | 250 |
|
| 4 | should have [vb pp] a | 195 |
|
