| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [subord] a [noun] [prep] | 1630 |
|
| 2 | so [adj] a [noun] [prep] | 177 |
|
| 3 | so [adj] [subord] a [noun] | 131 |
|
| 4 | so [adj] [subord] [noun] [prep] | 13 |
|
| 5 | so [subord] a [noun] [prep] | 7 |
|
