| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [prep] a [noun] | 299 |
|
| 2 | opt [prep] a [noun] | 87 |
|
| 3 | have opt [prep] a | 32 |
|
| 4 | have opt [prep] [noun] | 26 |
|
